[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Only fix here was to completely disable LPM in libata with "libata.force=nolpm" -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Adding the above line to the kernel on Mantic does not work - in fact setting values in /sys/class/scsi_host/host*/link_power_management_policy appears to get reverted during boot also. I have added this to rc.local but it changes back to med_power_with_dipm once the boot is completed. I have tried adding the kernel line, and also setting via systemd and cron tasks, it appears that something is reverting this setting. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
To summary #1 Symptom: On AMD EPYC, ROME server platform, SATA hot plug not working on Ubuntu 22.04 LTS. #2 Root cause: Ubuntu kernel compile with configure CONFIG_SATA_MOBILE_LPM_POLICY=3. During devices scan ( boot, pci scan, ahci driver load), if didn't detected any valid sata port or disk, it will power off the sata controller, so no event can get when plug in sata disk. It seems an expecting logic as AHCI spec shows that once LPM is enabled, then the hotplug needs to be disabled. # To enable hotplug by one of below 2 methods a. Add below kernel parameter can make sata hot plug working ahci.mobile_lpm_policy=1 In our test, set to 0 or 2 also works. Refer to #46 for what 0,1,2,3 represents. b. via proc file To set "max_performance" for "/sys/class/scsi_host/host*/link_power_management_policy" Set min_power or medium_power will enable power save and disable the "Hot Plug" again. # More info about mobile ALPM Aggressive Link Power Management (ALPM) is a mechanism where a SATA AHCI controller can put the SATA link that connects to the disk into a very low power mode during periods of zero I/O activity and into an active power state when work needs to be done. More refer to https://wiki.ubuntu.com/Kernel/PowerManagementALPM. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
@Mario, May I ask you another 2 extending questions. A. What is results in a AMD client( like laptop)? I thought this hot plug works out of box in client, what cause this difference from kernel/code? B. I was told that hot plug works out of box on their Intel's server. What cause this difference? thanks, Mao -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
@KH: Thanks for sharing that! I agree with you. I've sent this up to explicitly document the new behavior. https://lore.kernel.org/linux-ide/20220524170508.563-4-mario.limoncie...@amd.com/T/#u -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
@Mario, Thanks for those deep and detail analyse for the root cause. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
According to AHCI spec v1.3.1, "7.3 Native Hot Plug Support", once LPM is enabled the hotplug needs to be disabled. So I agree with 2), I think we should write document and let users know how to change the LPM for hotplugging detection. For 3) I don't think we need to change the way it works, because there can be lots of corner cases to cover, and not all servers need AHCI hotplug feature. We just need a good documentation to instruct users how to disable it. 4) is kicking the can down the road, the same issue will re-appear once those servers get upgraded. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
0-> ATA_LPM_UNKNOWN,
1-> ATA_LPM_MAX_POWER,
2-> ATA_LPM_MED_POWER,
3-> ATA_LPM_MED_POWER_WITH_DIPM, /* Med power + DIPM as win IRST does */
4-> ATA_LPM_MIN_POWER_WITH_PARTIAL, /* Min Power + partial and slumber */
5-> ATA_LPM_MIN_POWER, /* Min power + no partial (slumber only) */
I hypothesize what is happening is based on your configuration that
Ubuntu configuration has CONFIG_SATA_MOBILE_LPM_POLICY as "3", and so on
your system it sets MED_POWER_WITH_DIPM if you don't override it.
Here is what that means:
med_power_with_dipm: Identical to the existing medium_power
setting except that it enables dipm (device initiated power
management) on top, which makes it match the Windows IRST (Intel
Rapid Storage Technology) driver settings. This setting is also
close to min_power, except that:
a) It does not use host-initiated slumber mode, but it does
allow device-initiated slumber
b) It does not enable low power device sleep mode (DevSlp).
I think I found the problem. When policy is set this way the code will look
and see whether any links are enabled and power the port off if not. When the
port is powered off, it doesn't get powered back on.
case ATA_LPM_MED_POWER_WITH_DIPM:
case ATA_LPM_MIN_POWER_WITH_PARTIAL:
case ATA_LPM_MIN_POWER:
if (ata_link_nr_enabled(link) > 0)
/* no restrictions on LPM transitions */
scontrol &= ~(0x7 << 8);
else {
/* empty port, power off */
scontrol &= ~0xf;
scontrol |= (0x1 << 2);
}
break;
So no hotplug event should come through while in this state *because* the
controller gets powered off.
I think you can probably change the link power management file at runtime to
wake the port back up.
Here's my ideas:
1) Revert the commit. This will fix hotplug on Epyc, but raise power
consumption on all the client stuff with nothing plugged in by default. It
could have some negative impacts to anything that passed energy certifications
previously.
2) Live with and document the new behavior (to enable hotplug support
you need to set policy accordingly using this sysfs file etc).
3) Try to special case Epyc vs Client to only apply this mobile policy
on client parts. This gets a bit ugly as the controllers are the same,
it's just a policy decision that is different for these. We would need
some scalable criteria or at least a hint to know that the controller is
part of a datacenter CPU.
4) Revert the commit in stable and only let the new behavior exist in
newer kernels.
In upstream kernel we wanted to drop this mobile vs not mobile
designation, so doing #2 for this situation and coming up with a way to
do #3 upstream is my preference to solve this.
Any thoughts/suggestions?
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https://bugs.launchpad.net/bugs/1971576
Title:
SATA device hot plug regression on AMD EPYC (Asus) server
Status in linux package in Ubuntu:
Confirmed
Bug description:
SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux
version 5.4.0-109-generic", but it works on earlier version of " Linux
version 5.4.0-42-generic"
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hi Mario, The test results for 5.18.0-4 are below: Kernel parameters sata hot plug works or not default No hci.mobile_lpm_policy=0 Yes hci.mobile_lpm_policy=1 Yes hci.mobile_lpm_policy=2 Yes By the way, what is difference of 0,1,2 for lpm policy. thanks, Mao -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Can you please collect the trace again with "scsi" prefix: $ sudo trace-cmd record -p function -l "*sata*" -l "*ahci*" -l "*scsi*" Thanks again! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
For #40, trace data for hotplug not working ** Attachment added: "trace-no-hotplug.zip" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+attachment/5591529/+files/trace-no-hotplug.zip -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
For #40, I asked them to collect trace data on both hotplug working and not. ** Attachment added: "trace-hotplug.zip" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+attachment/5591527/+files/trace-hotplug.zip -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
For #39, Marios's，partner said all fails ( hotplug was not working). I guess we were expected it can work. So I will check him if he set kernel parameter correctly. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
I guess the hotplug event is filtered out. Please collect ftrace log so we can investigate the issue: $ sudo trace-cmd record -p function -l "*sata*" -l "*ahci*" -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
On any failing kernel, can you try to add "ahci.mobile_lpm_policy=0" to the kernel command line and confirm if that fixes things? If it does, could you also compare "ahci.mobile_lpm_policy=1" and "ahci.mobile_lpm_policy=2"? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hey Haled, Mario, Both 5.15 and 5.18 are failed, kernel were from (Khaled's) #37 building. "uname -r "output from screenshots are: 5.15.0-32-generic 5.18.0-4-generic thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hey Zhanglei. We do not have a 5.16 Ubuntu kernel. We do have 5.15 kernels. The current mainline version is 5.18 not 5.16. I have built 2 kernels, one 5.18 and one 5.15 kernel for you. 5.15: https://kernel.ubuntu.com/~kmously/kernel-kmously-45afdcc-gwrv/ 5.18: https://kernel.ubuntu.com/~kmously/kernel-kmously-469ac56-or1l/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
No need to build a kernel, at least for a quick test you can pick up one from the mainline PPA and try it. https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.18-rc7/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Kahled, For Mario's comments#33, will you or can you build a main kernel (v5.16) for testing? //thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Kahled,
First, thanks for your effort to find this root cause in a short time.
For your comment #31, parnter has confirmed it is same for other type of disk.
I also asked them to raise this issue to AMD and AMD technical guy
reply below.
"Yes, 1022:7901h is AMD SATA AHCI controller. Using the ID should is OK on
AMD EYPC processor."
I just searched the VID:DID= 1022:7901 and find it should belong to AMD FCH
SATA Controller,
as shown below. https://devicehunt.com/view/type/pci/vendor/1022/device/7901
I guess your fix is to remove below line, than hot plug worked, is this right?
{ PCI_VDEVICE(AMD, 0x7901), board_ahci_mobile }, /* AMD Green Sardine */
So your questions is why this new device ID of "AMD SATA AHCI
controller" is conflict with "AMD Green Sardine"? If this understand is
right, I would ask AMD guy.
thanks
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https://bugs.launchpad.net/bugs/1971576
Title:
SATA device hot plug regression on AMD EPYC (Asus) server
Status in linux package in Ubuntu:
Confirmed
Bug description:
SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux
version 5.4.0-109-generic", but it works on earlier version of " Linux
version 5.4.0-42-generic"
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
> but I believe you are using an AMD EPYC server, so I don't understand why you would be affected at all. It may be that this server silicon has the same HW IP as the client chip. The change was tested on client chips before submitting. What it is supposed to do is set the policy for the drives in `ahci_update_initial_lpm_policy` but only when the system supports suspend to idle. I find it hard to believe a server would support this though.. I double checked one of the sosreport above and confirmed it does look like it's the same HWIP as client though from lspci in the sosreport: 46:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 51) (prog-if 01 [AHCI 1.0]) But I also looked at sosreport and system doesn't support suspend to idle. Low Power S0 Idle (V5) : 0 So this function that changes is supposed to be a no-op when the system doesn't use suspend to idle. I wonder if the policy getting set by default is instead CONFIG_SATA_MOBILE_LPM_POLICY now. > Can you please give mainline kernel a try? I would also like to see mainline kernel results to find out if this is just an artifact of something on the older kernel. The testing done on this change was on kernel 5.16. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Can you please give mainline kernel a try? If mainline kernel still doesn't work, please run the following: $ sudo trace-cmd record -p function -l "*ata*" -l "*ahci*" ... then plug the disk, Ctrl + C on trace-cmd, attach trace.dat here. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Thanks Zhanglei. Great. We have identified the problem patch, which is this one: 380cd49e207ba4 ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile But I am not really sure why this patch is causing a problem. The patch only adds one new line as you can see here: https://pastebin.ubuntu.com/p/TDXdRttc4M/plain Looks like it is altering the behaviour of "PCI device ID 1022:7901" which is supposed to be AMD "Green Sardine". From what I found online, "Green Sardine" is an AMD APU (CPU + GPU) but I believe you are using an AMD EPYC server, so I don't understand why you would be affected at all. Looking at the SOS report you provided, I see the device ID for the SATA controller is 1022:7901 even though you are using EPYC. Again, not really sure why. I don't understand why there is a conflict in device IDs like this. I will see if I can find out more information. Do you know if the problem happens with any disk you hotplug, or just this one? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Khaled, the Version 3007 failed. thanks！ //Mao -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Zhanglei. Thanks. This means: 3000: BUG 3002: NO BUG 3003: NO BUG 3004: NO BUG 3005: BUG 3006: NO BUG There are only 5 patches between 3005 and 3006 so one of them is the problem. You can see the list of patches here: https://pastebin.canonical.com/p/TkvDGcfHWk/plain/ Only one of them seems related to sata which is "ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile" So maybe this is the one. Please test kernel 3007 from here: https://kernel.ubuntu.com/~kmously/kernel-kmously-3b63e74-Mkii/ If this fails, then this will be the last kernel we have to test. Please make sure you are running version 3007. Thanks -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Khaled, the 3006 kernel can pass. thanks //Mao -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Zhanglei. Thanks for the update. This means: 3000: BUG 3002: NO BUG 3003: NO BUG 3004: NO BUG 3005: BUG We are getting very close now. Please try version 3006 from this link: https://kernel.ubuntu.com/~kmously/kernel-kmously-c756bab-RGcD/ Please make sure you are running 3006. Thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Khaled, Version 3005 hot plug fail. Thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello again Zhanglei. This means that so far: 3000: BUG 3002: NO BUG 3003: NO BUG 3004: NO BUG You can find kernel 3005 here: https://kernel.ubuntu.com/~kmously/kernel-kmously-039f206-aRqC/ Please ensure you are running version -3005. Thank you -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Thanks Zhanglei. I am building 3005 now. It should be ready in about 30 minutes. I will update again soon -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Kahled, Version 3004 hot plug can pass. thanks //Mao -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Thanks Zhanglei. This means that so far: 3000: BUG 3002: NO BUG 3003: NO BUG We are getting closer. This is the remaining set of patches: 00501b41aaf73f (tag: test-3000, tag: fail1) s390/pci: move pseudo-MMIO to prevent MIO overlap 14914e943b0ca5 cpufreq: Fix get_cpu_device() failure in add_cpu_dev_symlink() 02a3dc73620247 rt2x00: do not mark device gone on EPROTO errors during start d0c736f3c95a8e kprobes: Limit max data_size of the kretprobe instances 1101e48029ef8b vrf: Reset IPCB/IP6CB when processing outbound pkts in vrf dev xmit 8ac948debe102a net/smc: Avoid warning of possible recursive locking 844b74044432ab perf report: Fix memory leaks around perf_tip() ef0a82700dd088 perf hist: Fix memory leak of a perf_hpp_fmt 25b5451cf6b834 net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock() 79ab9e40571039 net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound 60cbd2bb3e4920 ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() 380cd49e207ba4 ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile 02ce9dcd0056d0 scsi: iscsi: Unblock session then wake up error handler 39fe9db370a672 thermal: core: Reset previous low and high trip during thermal zone init 9c4257be2b4e87 (tag: test-3004) btrfs: check-integrity: fix a warning on write caching disabled disk 7888748df21e65 s390/setup: avoid using memblock_enforce_memory_limit ec02be4afbaa32 platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep ecaf617d2d911f net: return correct error code cf471f304c7bdd atlantic: Fix OOB read and write in hw_atl_utils_fw_rpc_wait ef48e7dac2b4a5 net/smc: Transfer remaining wait queue entries during fallback f5a7ae1664ea55 mac80211: do not access the IV when it was stripped 04e2506c0a0f0e drm/sun4i: fix unmet dependency on RESET_CONTROLLER for PHY_SUN6I_MIPI_DPHY cc02a02a96d745 gfs2: Fix length of holes reported at end-of-file db58cf66b9ed5f can: j1939: j1939_tp_cmd_recv(): check the dst address of TP.CM_BAM 5891df6f755bdc arm64: dts: mcbin: support 2W SFP modules e7ef1451808ba8 of: clk: Make self-contained a8e84f43323809 NFSv42: Fix pagecache invalidation after COPY/CLONE 87243d366e21dd UBUNTU: upstream stable to v5.4.163 8dedcf4867336b Linux 5.4.163 fe61be970fa57f tty: hvc: replace BUG_ON() with negative return value ae65528da134f8 (tag: test-3003, tag: pass2) xen/netfront: don't trust the backend response data blindly The bottom commit (3003) passed and the top commit (3000) failed, so the problem is one of the patches in between. We are now about to test kernel 3004 in the middle. You can find kernel 3004 here: https://kernel.ubuntu.com/~kmously/kernel-kmously-721de44-fWzO/ Please ensure you are running version -3004. Thank you -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Kahled, Version 3003 hot plug passed. //thanks -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Kahled, thanks for quick response. Your understanding for 3000 bug and 3002 no bug is correct. I have asked them to verify 3003 now. //thanks -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Zhanglei. Thanks for the update. >From my understanding, so far: 3000: BUG 3002: NO BUG I have the next kernel, 3003, available here: https://kernel.ubuntu.com/~kmously/kernel-kmously-8243717-Kutu Once again, please ensure that you are testing with -3003 when testing. Thank you -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Khaled, Version 3002 hot plug can pass. //thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Khaled, thanks for share detail information for your patching and explains of unable building mulit-kernel. The partner engineer did use 3000 kernel for sata hotplug test as they sent me a screenshot of "uname -r" output. I have asked them to test new 3002 kernel now. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Zhanglei, Thanks for the update. I am a little surprised that this kernel failed. There are 2 SATA related changes in kernel -100 which I suspected were the root cause. However, the kernel that I provided (version 3000) did NOT contain those patches, so I expected it to work. The patches that I suspected were the cause are: sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl In any case, maybe my assumption was incorrect. We can continue to bisect anyway. I am unable to provide all the kernels in one shot because the next kernel that we should test depends on the results of the test before it. If I give them all in one shot, I would have to give you 270 kernels to test instead of 9. We have already done the first bisect. Now we have 125 patches (instead of 270) so should be another 7 tests at most. The next kernel is available here: https://kernel.ubuntu.com/~kmously/kernel-kmously-440f762-4e4H/ This is version 3002. Please, when the engineer tests this kernel, make sure to type "uname -r" to confirm that it is version 3002. That way we can be 100% sure we are testing the right kernel. Thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Khale, hot plug test is fail for this version kernel. Please build next kernel. By the way, if it possible to build multi kernel, so that they can test them all in one shot. You know, the partner engineer is working on home this week and he have to look for someone else on office each time. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Khaled, I have asked partner engineer to test your build kernel. thanks. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
Hello Zhanglei, thanks for confirming the working/broken versions. I am not sure if I will be able to reproduce the issue myself. There are 270 changes between -99 and -100. If you can help me bisect them, we should be able to quickly identify the problem. Would you be able to test the kernels I provide so we can identify the breaking commit? We might need to test up to 9 more kernels. I have built the first test kernel. It can be found at: https://kernel.ubuntu.com/~kmously/kernel-kmously-d60b65f-bspU/ If you can, please install the linux-image, linux-modules and linux- modules-extra packages from the above link and attempt to reproduce the problem. Thank you. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1971576] Re: SATA device hot plug regression on AMD EPYC (Asus) server
** Summary changed: - SATA device hot plug regression on AMD EYPC (Asus) server + SATA device hot plug regression on AMD EPYC (Asus) server -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1971576 Title: SATA device hot plug regression on AMD EPYC (Asus) server Status in linux package in Ubuntu: Confirmed Bug description: SATA disk hot plug can't work on Ubuntu 20.04 ga-kernel of "Linux version 5.4.0-109-generic", but it works on earlier version of " Linux version 5.4.0-42-generic" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
