[Bug 1909062] Re: qede: Kubernetes Internal DNS Failure due to QL41xxx NIC not supporting IPIP tx csum offload

2021-02-02 Thread Manish Chopra
Hi Matthew,

We have verified the fix with proposed kernel.
I hope that I have corrected the "tags" appropriately.

Thanks,
Manish

** Tags removed: verification-needed-groovy
** Tags added: verification-done-groovy

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Title:
  qede: Kubernetes Internal DNS Failure due to QL41xxx NIC not
  supporting IPIP tx csum offload

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[Bug 1909062] Re: Ubuntu kernel 5.x QL41xxx NIC (qede driver) Kubernetes internal DNS failure

2020-12-25 Thread Manish Chopra
** Description changed:

- Customer is reporting a problem with QL41xxx and Ubuntu internal DNS
- server. The issue appeared when the customer updated to the latest
- Ubuntu kernel 20.04.1 LTS version 5.4.0-52-generic. Issue was not
- observed with 4.5 ubuntu-linux.
+ With QL41xxx and Ubuntu DNS server DNS failures are seen when updated to
+ the latest Ubuntu kernel 20.04.1 LTS version 5.4.0-52-generic. Issue was
+ not observed with 4.5 ubuntu-linux.
  
  Problem Definition:
- 
- Product: PowerEdge R740xd
- Serial: C7J90W2
- Hostname: xkubmin1r12
  OS Version: /etc/os-release shows Ubuntu 18.04.4 LTS, but Booted kernel is 
the latest Ubuntu 20.04.1 LTS version 5.4.0-52-generic
  NIC: 2 dual-port (4) QLogic Corp. FastLinQ QL41000 Series 10/25/40/50GbE 
Controller [1077:8070] (rev 02)
- Firmware: 15.15.11
  Inbox driver qede v8.37.0.20
  
- 
- Completed Detailed Problem Description:
+ Complete Detailed Problem Description:
  Anything that uses the internal Kubernetes DNS server fails. If an external 
DNS server is used resolution works for non-Kubernetes IPs.
  
- Customer is experiencing the same issue described in this article.
+ Similar issue is described in this article.
  https://github.com/kubernetes/kubernetes/issues/95365
- 
- Customer Impact: Production site
- The QLogic Nic 41262 is their main nic for all of their 14G environment 
thousands of servers. Unclear how many of those hosts are Kubernetes, but the 
point is they want the QL41000 to work since it is very prevalent in the entire 
environment.
  
  Below patch recently on upstream fixes this -
  [Note that issue was introduced by driver's tunnel offload support which was 
added in after 4.5 kernel]
  
  commit 5d5647dad259bb416fd5d3d87012760386d97530
  Author: Manish Chopra 
  Date:   Mon Dec 21 06:55:30 2020 -0800
  
- qede: fix offload for IPIP tunnel packets
+ qede: fix offload for IPIP tunnel packets
  
- IPIP tunnels packets are unknown to device,
- hence these packets are incorrectly parsed and
- caused the packet corruption, so disable offlods
- for such packets at run time.
+ IPIP tunnels packets are unknown to device,
+ hence these packets are incorrectly parsed and
+ caused the packet corruption, so disable offlods
+ for such packets at run time.
  
- Signed-off-by: Manish Chopra 
- Signed-off-by: Sudarsana Kalluru 
- Signed-off-by: Igor Russkikh 
- Link: https://lore.kernel.org/r/20201221145530.7771-1-mani...@marvell.com
- Signed-off-by: Jakub Kicinski 
- 
+ Signed-off-by: Manish Chopra 
+ Signed-off-by: Sudarsana Kalluru 
+ Signed-off-by: Igor Russkikh 
+ Link: https://lore.kernel.org/r/20201221145530.7771-1-mani...@marvell.com
+ Signed-off-by: Jakub Kicinski 
  
  Thanks,
  Manish

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Title:
  Ubuntu kernel 5.x QL41xxx NIC (qede driver) Kubernetes internal DNS
  failure

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[Bug 1909062] Re: Ubuntu kernel 5.x QL41xxx NIC (qede driver) Kubernetes internal DNS failure

2020-12-22 Thread Manish Chopra
We don't have any logs to post, attached wire traces which we got from
customer as we were only interested in that. Having said that, this bug
is resolved with the above fix posted upstream, I guess we don't need
any further logs.

** Attachment added: "wire_traces.zip"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1909062/+attachment/5446099/+files/wire_traces.zip

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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Title:
  Ubuntu kernel 5.x QL41xxx NIC (qede driver) Kubernetes internal DNS
  failure

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[Bug 1909062] [NEW] Ubuntu kernel 5.x QL41xxx NIC (qede driver) Kubernetes internal DNS failure

2020-12-22 Thread Manish Chopra
Public bug reported:

Customer is reporting a problem with QL41xxx and Ubuntu internal DNS
server. The issue appeared when the customer updated to the latest
Ubuntu kernel 20.04.1 LTS version 5.4.0-52-generic. Issue was not
observed with 4.5 ubuntu-linux.

Problem Definition:

Product: PowerEdge R740xd
Serial: C7J90W2
Hostname: xkubmin1r12
OS Version: /etc/os-release shows Ubuntu 18.04.4 LTS, but Booted kernel is the 
latest Ubuntu 20.04.1 LTS version 5.4.0-52-generic
NIC: 2 dual-port (4) QLogic Corp. FastLinQ QL41000 Series 10/25/40/50GbE 
Controller [1077:8070] (rev 02)
Firmware: 15.15.11
Inbox driver qede v8.37.0.20


Completed Detailed Problem Description:
Anything that uses the internal Kubernetes DNS server fails. If an external DNS 
server is used resolution works for non-Kubernetes IPs.

Customer is experiencing the same issue described in this article.
https://github.com/kubernetes/kubernetes/issues/95365

Customer Impact: Production site
The QLogic Nic 41262 is their main nic for all of their 14G environment 
thousands of servers. Unclear how many of those hosts are Kubernetes, but the 
point is they want the QL41000 to work since it is very prevalent in the entire 
environment.

Below patch recently on upstream fixes this -
[Note that issue was introduced by driver's tunnel offload support which was 
added in after 4.5 kernel]

commit 5d5647dad259bb416fd5d3d87012760386d97530
Author: Manish Chopra 
Date:   Mon Dec 21 06:55:30 2020 -0800

qede: fix offload for IPIP tunnel packets

IPIP tunnels packets are unknown to device,
hence these packets are incorrectly parsed and
caused the packet corruption, so disable offlods
for such packets at run time.

Signed-off-by: Manish Chopra 
Signed-off-by: Sudarsana Kalluru 
Signed-off-by: Igor Russkikh 
Link: https://lore.kernel.org/r/20201221145530.7771-1-mani...@marvell.com
Signed-off-by: Jakub Kicinski 


Thanks,
Manish

** Affects: ubuntu
 Importance: Undecided
 Status: New

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Title:
  Ubuntu kernel 5.x QL41xxx NIC (qede driver) Kubernetes internal DNS
  failure

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[Bug 1667790] Re: PXE Installation Failure - Ubuntu14.04.5

2017-02-28 Thread Manish Chopra
Hi Brian,

In case of non working interface we observe these logs - related to netcfg 
segfault.
This is what we see main difference between working [where we don't see these 
failure logs] and non working interface.

eb 24 06:31:49 dhclient: DHCPREQUEST of 192.168.10.91 on p4p1 to 
255.255.255.255 port 67 (xid=0x419a4dac)
Feb 24 06:31:49 dhclient: DHCPACK of 192.168.10.91 from 192.168.10.100
Feb 24 06:31:49 dhclient: bound to 192.168.10.91 -- renewal in 2494 seconds.
Feb 24 06:31:51 netcfg[3724]: DEBUG: Reading domain name returned via DHCP
Feb 24 06:31:51 netcfg[3724]: DEBUG: DHCP domain name is 'redhatguides.local'
Feb 24 06:31:51 netcfg[3724]: DEBUG: Reading nameservers from /etc/resolv.conf
Feb 24 06:31:51 netcfg[3724]: DEBUG: Read nameserver 192.168.10.1
Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 1
Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 2
Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 5
Feb 24 06:31:51 netcfg[3724]: INFO: DHCP hostname: "kickseed"
Feb 24 06:31:51 netcfg[3724]: DEBUG: kickseed is a valid FQDN
Feb 24 06:31:51 netcfg[3724]: DEBUG: Preseeding domain from global: 
redhatguides.local
Feb 24 06:31:51 netcfg[3724]: DEBUG: State is now 6
Feb 24 06:31:51 netcfg[3724]: DEBUG: Network config complete
Feb 24 06:31:51 netcfg[3724]: DEBUG: No interface given; clearing 
/etc/network/interfaces
Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing informative header
Feb 24 06:31:51 netcfg[3724]: DEBUG: Success!
Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing loopback interface
Feb 24 06:31:51 netcfg[3724]: DEBUG: Success!
Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing DHCP stanza for p4p1
Feb 24 06:31:51 netcfg[3724]: DEBUG: Writing wireless options for p4p1
Feb 24 06:31:51 netcfg[3724]: DEBUG: Success!
Feb 24 06:31:52 main-menu[2545]: WARNING **: Configuring 'netcfg' failed with 
error code 139
Feb 24 06:31:52 main-menu[2545]: WARNING **: Menu item 'netcfg' failed.
Feb 24 06:31:52 kernel: [   62.915859] netcfg[3724]: segfault at 0 ip 
7f1ab154e34f sp 7ffc781aec78 error 4 in libc.so.6[7f1ab14b1000+1ba000]

but we don't know why this can be caused -
Any idea how to debug this further for the cause of netcfg segfault ?


Appreciate your help in regards to this.

Thanks,
Manish

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Title:
  PXE Installation Failure - Ubuntu14.04.5

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