Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
Hi, Jonathan Nieder wrote: When I boot the HURD without passing -no-kvm-irqchip on the command line, the system usually will print hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: unexpected_intr: status=0x58 [and so on] Fix (for the KVM host) merged to linus's master as part of kvm-updates/2.6.39, as a commit named 7049467b (KVM: remove isr_ack logic from PIC, 2011-02-09). So v2.6.39 will fix this. Hope that helps, Jonathan -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
Hello, Jonathan Nieder, le Thu 24 Mar 2011 05:40:34 -0500, a écrit : Jonathan Nieder wrote: When I boot the HURD without passing -no-kvm-irqchip on the command line, the system usually will print hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: unexpected_intr: status=0x58 [and so on] Fix (for the KVM host) merged to linus's master as part of kvm-updates/2.6.39, as a commit named 7049467b (KVM: remove isr_ack logic from PIC, 2011-02-09). So v2.6.39 will fix this. Great! Thanks for the notice! Do you happen to know which version the bug was introduced it? Hope that helps, Sure! Samuel -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
Samuel Thibault wrote: Jonathan Nieder, le Thu 24 Mar 2011 05:40:34 -0500, a écrit : So v2.6.39 will fix this. Great! Thanks for the notice! Do you happen to know which version the bug was introduced it? Yes, it bisects to v2.6.37-rc1~142^2~39 (KVM: Check for pending events before attempting injection, 2010-07-27). The thread starting at [1] has details. Regards, Jonathan [1] http://thread.gmane.org/gmane.comp.emulators.kvm.devel/58669/focus=67483 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
Jonathan Nieder, le Thu 24 Mar 2011 05:58:47 -0500, a écrit : [1] http://thread.gmane.org/gmane.comp.emulators.kvm.devel/58669/focus=67483 Cool! Thanks for having handled this. Samuel -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
tags 612105 + upstream patch fixed-upstream quit Jonathan Nieder wrote: When I boot the HURD without passing -no-kvm-irqchip on the command line, the system usually will print hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: unexpected_intr: status=0x58 [and so on] at boot time and not get past that. If lucky, the system boots up but still hangs (not responding to keyboard input) at seemingly random moments. 09493165 (KVM: remove isr_ack logic from PIC, 2011-02-09) which can be found at git://git.kernel.org/pub/scm/virt/kvm/kvm.git master fixes this for what it's worth. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
tags 612105 + unreproducible moreinfo thanks 06.02.2011 02:09, Jonathan Nieder пишет: Package: qemu-kvm Version: 0.13.0+dfsg-2 Severity: important Hi, See [1] for the war story. When I boot the HURD without passing -no-kvm-irqchip on the command line, the system usually will print hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: unexpected_intr: status=0x58 [and so on] at boot time and not get past that. If lucky, the system boots up but still hangs (not responding to keyboard input) at seemingly random moments. Based on a hint from guillem, I tried passing -no-kvm-irqchip on the kvm command line. And now it works great! Known problem? Ideas for tracking it down? Jonathan $ : host $ uname -a Linux elie 2.6.38-rc3+ #2 SMP PREEMPT Thu Feb 3 17:51:50 CST 2011 x86_64 GNU/Linux $ (cd ~/src/linux-2.6 git rev-parse --short HEAD) 831d52b $ dpkg-query -W qemu-kvm vde2 libaio1 libvdeplug2 iproute \ bridge-utils etherboot-qemu qemu-utils bridge-utils 1.4-5 etherboot-qemu 5.4.4-9 iproute 20100519-3 libaio1 0.3.107-7 libvdeplug2 2.2.3-3 qemu-kvm 0.13.0+dfsg-2 qemu-utils 0.13.0+dfsg-2 vde2 2.2.3-3 [1] I was installing the hurd using a Debian installation CD-ROM (see http://www.debian.org/ports/hurd/hurd-cd) like so: wget http://people.debian.org/~sthibault/hurd-i386/installer/cdimage/mini.iso qemu-img create hurd-install.qemu 3G kvm -m 512 -net nic,model=ne2k_pci -net user \ -hda hurd-install.qemu -cdrom mini.iso -boot d Puzzlingly, the result would hang (and not respond to keyboard input) at seemingly random moments. Sometimes right after Enabling FXSR during bootup, sometimes after the text auth was printed, sometimes later. I can't reproduce this with either of the released kernels - neither standard 2.6.32, nor 2.6.37-trunk from unstable, nor with my custom kernels (2.6.32 or 2.6.36). It works with or without -no-kvm-irqchip, on 32 or 64bits (I did about a dozen of boots, but I didn't try to actually install hurd, just answering a few questions installer asks and stopping there). How about trying one of supported kernels first, instead of (ab)using a development snapshot of the kernel? /mjt -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
# Michael Tokarev wrote: # # tags 612105 + unreproducible moreinfo # # I can still reproduce it on demand... tags 612105 - unreproducible quit How about trying one of supported kernels first, instead of (ab)using a development snapshot of the kernel? Okay, will try. (Is testing kernels before they flow into Debian really abuse?) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
Michael Tokarev wrote:
How about trying one of supported kernels first
- 2.6.37-trunk-amd64 from experimental has the same problem[1].
- 2.6.32-5-amd64 from squeeze works fine.
I'll try bisecting.
Thanks,
Jonathan
[1] kvm command line:
kvm -m 768 -net nic,model=ne2k_pci -net user hurd-installed.qemu
Result:
start ext2fs: Hurd server bootstrap: ext2fs[device:hd0s1] exec
[waits a long time, I hit ctrl+alt, info registers, etc in the
hope of waking it up, and then]
kb_setleds1: unexpected state (1)
[a bunch of times]
hd0: irq timeout: status=0x58hd0: unexpected_intr: status=0x58 {
DriveReady Seek
Complete DataRequest }
{ DriveReady SeekComplete DataRequest }
and it hangs again. Adding -no-kvm-irqchip to the kvm command line
fixes it.
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Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
06.02.2011 20:48, Jonathan Nieder wrote: How about trying one of supported kernels first, instead of (ab)using a development snapshot of the kernel? Okay, will try. (Is testing kernels before they flow into Debian really abuse?) No, that's not what I mean. If it looked harsh to you, please accept my apologies, it wasn't my intention. What I mean is: it is unrealistic to deal with bug reports when some of the main components involved are some randome beta release candidates with its own pile of not-yet-settled bugs. If you try such a combination, you'll have to understand how to handle such situation yourself, and especially how to contact upstream who understands the whole picture much better. From my side it isn't practical to act as a broken phone between you and kernel developers, you've much shorter route and you understand your own versions and configs much better too. If at least most important components are the ones which are available in debian - from one of the released (even in -experimental) versions, so at least their respective maintainers checked the configs, maybe tried to run that stuff themselves on a few machines, and just know what it is all about, -- in that case it is practical to file bugreports against debian packages and use BTS. In your case, - provided the original information, namely using a 3rd release candidate of next kernel version - and provided the behavour didn't exist on previous released kernel - the best will be to use upstream bugtracker or mailinglist (most likely kvm@vger). But since you observed it also happens on 2.6.37 as exists in debian (even experimental), and that kernel is actually released, things may change. I can't reproduce it on 2.6.37 still, but at least now I'll try harder. Thanks. /mjt -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
tags 612105 - moreinfo reassign 612105 linux-2.6 found 612105 linux-2.6/2.6.37-1~experimental.1 forwarded 612105 http://thread.gmane.org/gmane.comp.emulators.kvm.devel/58669/focus=67483 affects 612105 + qemu-kvm quit Michael Tokarev wrote: I can't reproduce this with either of the released kernels - neither standard 2.6.32, nor 2.6.37-trunk from unstable, nor with my custom kernels (2.6.32 or 2.6.36). It works with or without -no-kvm-irqchip, on 32 or 64bits Puzzling. Let's take this upstream. Thanks again for the help, Jonathan -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#612105: qemu-kvm: hangs and irq timeout unless -no-kvm-irqchip passed
Package: qemu-kvm Version: 0.13.0+dfsg-2 Severity: important Hi, See [1] for the war story. When I boot the HURD without passing -no-kvm-irqchip on the command line, the system usually will print hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: irq timeout: status=0x50 hd2: unexpected_intr: status=0x58 [and so on] at boot time and not get past that. If lucky, the system boots up but still hangs (not responding to keyboard input) at seemingly random moments. Based on a hint from guillem, I tried passing -no-kvm-irqchip on the kvm command line. And now it works great! Known problem? Ideas for tracking it down? Jonathan $ : host $ uname -a Linux elie 2.6.38-rc3+ #2 SMP PREEMPT Thu Feb 3 17:51:50 CST 2011 x86_64 GNU/Linux $ (cd ~/src/linux-2.6 git rev-parse --short HEAD) 831d52b $ dpkg-query -W qemu-kvm vde2 libaio1 libvdeplug2 iproute \ bridge-utils etherboot-qemu qemu-utils bridge-utils 1.4-5 etherboot-qemu 5.4.4-9 iproute20100519-3 libaio10.3.107-7 libvdeplug22.2.3-3 qemu-kvm 0.13.0+dfsg-2 qemu-utils 0.13.0+dfsg-2 vde2 2.2.3-3 [1] I was installing the hurd using a Debian installation CD-ROM (see http://www.debian.org/ports/hurd/hurd-cd) like so: wget http://people.debian.org/~sthibault/hurd-i386/installer/cdimage/mini.iso qemu-img create hurd-install.qemu 3G kvm -m 512 -net nic,model=ne2k_pci -net user \ -hda hurd-install.qemu -cdrom mini.iso -boot d Puzzlingly, the result would hang (and not respond to keyboard input) at seemingly random moments. Sometimes right after Enabling FXSR during bootup, sometimes after the text auth was printed, sometimes later. When it hangs, it is fairly easy to nudge it back into working again: 1. Hit ctrl-alt-2 to get a console. 2. Run info registers I doubt the details matter --- it is just that some nudging got it working again. By doing so and occasionally rebooting, I eventually got a working installation. Even after that, though, I was not able to boot hurd, instead receiving the message described above. processor : 0 vendor_id : AuthenticAMD cpu family : 16 model : 6 model name : AMD Athlon(tm) II P360 Dual-Core Processor stepping: 3 cpu MHz : 800.000 cache size : 512 KB physical id : 0 siblings: 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a 3dnowprefetch osvw ibs skinit wdt nodeid_msr npt lbrv svm_lock nrip_save bogomips: 4588.54 TLB size: 1024 4K pages clflush size: 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate processor : 1 vendor_id : AuthenticAMD cpu family : 16 model : 6 model name : AMD Athlon(tm) II P360 Dual-Core Processor stepping: 3 cpu MHz : 800.000 cache size : 512 KB physical id : 0 siblings: 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a 3dnowprefetch osvw ibs skinit wdt nodeid_msr npt lbrv svm_lock nrip_save bogomips: 4588.54 TLB size: 1024 4K pages clflush size: 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate
