[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
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On 2009-07-31T11:39:00+00:00 Jeff wrote:
Created attachment 355795
dumpxml of the rawhide guest from virsh
Opening as a rawhide kernel bug, but it could also be a problem with the
host kernel or qemu instance.
I have a rawhide kvm guest running on a Fedora 10 host. The guest's ring
buffer is continually being spammed several times per second with this
message:
end_request: I/O error, dev vda, sector 0
...everything seems to be working OK otherwise.
The guest is currently running:
2.6.31-0.94.rc4.fc12.x86_64
...but the problem has existed for quite some time with earlier kernels
too. The host is running:
2.6.27.25-170.2.72.fc10.x86_64
...and has:
qemu-0.9.1-12.fc10.x86_64
kvm-74-10.fc10.x86_64
The guest is using the virtio block driver for the disk. Let me know if
any other info would be useful.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/420423/comments/0
On 2009-08-05T11:45:48+00:00 Mark wrote:
Since we have a report of this on an F-11 host too, it sounds like a
guest kernel bug:
http://www.redhat.com/archives/fedora-virt/2009-August/msg0.html
But AFAICS, we should only get this if:
1) There's is a read/write error on the disk image in the host. Of note
here is that the disk image is an LVM volume /dev/rootvg64/rawhide
2) The guest issues a SCSI command
Perhaps it's the serial number support:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1d589bb1
or the SG_IO passthru support:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1cde26f9
Both were added in 2.6.31-rc1
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/420423/comments/1
On 2009-08-05T15:24:57+00:00 Jerry wrote:
Mark asked me to try kernel-2.6.30-1.fc12.x86_64. With that kernel, I
do not see the error message.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/420423/comments/2
On 2009-08-05T22:16:55+00:00 Mark wrote:
okay, the error is coming from here:
bool blk_do_ordered(struct request_queue *q, struct request **rqp)
{
struct request *rq = *rqp;
const int is_barrier = blk_fs_request(rq) && blk_barrier_rq(rq);
if (!q->ordseq) {
if (!is_barrier)
return true;
if (q->next_ordered != QUEUE_ORDERED_NONE)
return start_ordered(q, rqp);
else {
/*
* Queue ordering not supported. Terminate
* with prejudice.
*/
blk_dequeue_request(rq);
__blk_end_request_all(rq, -EOPNOTSUPP);
partial stack trace:
[] blk_update_request+0xca/0x363
[] ? debug_object_deactivate+0x47/0xf2
[] blk_update_bidi_request+0x2f/0x7f
[] __blk_end_request_all+0x44/0x74
[] blk_do_ordered+0x1e0/0x2ae
[] blk_peek_request+0x174/0x1c8
[] do_virtblk_request+0x192/0x1d3 [virtio_blk]
[] __blk_run_queue+0x54/0x9a
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/420423/comments/3
On 2009-08-06T10:47:50+00:00 Mark wrote:
Okay, reverting this:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=52b1fd5a27
commit 52b1fd5a27c625c78373e024bf570af3c9d44a79
Author: Mikulas Patocka
Date: Mon Jun 22 10:12:21 2009 +0100
dm: send empty barriers to targets in dm_flush
Pass empty barrier flushes to the targets in dm_flush().
Signed-off-by: Mikulas Patocka
Signed-off-by: Alasdair G Kergon
fixes it for me
Also, this little hack fixes it too:
@@ -1163,7 +1163,7 @@ static int __make_request(struct request_queue *q,
struct
const int unplug = bio_unplug(bio);
int rw_flags;
- if (bio_barrier(bio) && bio_has_data(bio) &&
+ if (bio_barrier(bio) && /* bio_has_data(bio) && */
(q->next_ordered == QUEUE_ORDERED_NONE)) {
bio_endio(bio, -EOPNOTSUPP);
return 0;
virtio_blk doesn't support barriers, and it seems these empty barriers
submitted by device-mapper are getting through to the device and causing
these errors
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[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
** Tags added: iso-testing -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
This bug was fixed in the package linux - 2.6.31-14.46 --- linux (2.6.31-14.46) karmic; urgency=low [ Andy Whitcroft ] * reinstate armel.mk with no flavours - LP: #449637 * [Upstream] elevator: fix fastfail checks to allow merge of readahead requests - LP: #444915 * [Upstream] block: silently error unsupported empty barriers too - LP: #420423 [ John Johansen ] * SAUCE: AppArmor: Fix mediation of "deleted" paths - LP: #415632 [ Tim Gardner ] * [Config] CONFIG_X86_MCE https://lists.ubuntu.com/archives/kernel-team/2009-October/007584.html * Revert "appletalk: Fix skb leak when ipddp interface is not loaded, CVE-2009-2903" - Use patch from 2.6.31.4 which is slightly different. [ Upstream Kernel Changes ] * x86: fix csum_ipv6_magic asm memory clobber * tty: Avoid dropping ldisc_mutex over hangup tty re-initialization * x86: Don't leak 64-bit kernel register values to 32-bit processes * tracing: correct module boundaries for ftrace_release * ftrace: check for failure for all conversions * futex: fix requeue_pi key imbalance * futex: Move exit_pi_state() call to release_mm() * futex: Nullify robust lists after cleanup * futex: Fix locking imbalance * NOHZ: update idle state also when NOHZ is inactive * ima: ecryptfs fix imbalance message * libata: fix incorrect link online check during probe * sound: via82xx: move DXS volume controls to PCM interface * ASoC: WM8350 capture PGA mutes are inverted * KVM: Prevent overflow in KVM_GET_SUPPORTED_CPUID * KVM: VMX: flush TLB with INVEPT on cpu migration * KVM: fix LAPIC timer period overflow * KVM: SVM: Fix tsc offset adjustment when running nested * KVM: SVM: Handle tsc in svm_get_msr/svm_set_msr correctly * net: Fix wrong sizeof * mm: add_to_swap_cache() must not sleep * sis5513: fix PIO setup for ATAPI devices * PIT fixes to unbreak suspend/resume (bug #14222) * IMA: open new file for read * ACPI: Clarify resource conflict message * ACPI: fix Compaq Evo N800c (Pentium 4m) boot hang regression * net: restore tx timestamping for accelerated vlans * net: unix: fix sending fds in multiple buffers * tun: Return -EINVAL if neither IFF_TUN nor IFF_TAP is set. * tcp: fix CONFIG_TCP_MD5SIG + CONFIG_PREEMPT timer BUG() * net: Fix sock_wfree() race * smsc95xx: fix transmission where ZLP is expected * sky2: Set SKY2_HW_RAM_BUFFER in sky2_init * appletalk: Fix skb leak when ipddp interface is not loaded * ax25: Fix possible oops in ax25_make_new * ax25: Fix SIOCAX25GETINFO ioctl * sit: fix off-by-one in ipip6_tunnel_get_prl * Linux 2.6.31.4 * drm/i915: Fix FDI M/N setting according with correct color depth - LP: #416792 -- Andy WhitcroftTue, 13 Oct 2009 12:06:59 +0100 ** Changed in: linux (Ubuntu) Status: Fix Committed => Fix Released ** CVE added: http://www.cve.mitre.org/cgi- bin/cvename.cgi?name=2009-2903 -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
Andy thanks for the quick response on this one. Far better than some of the "enterprise" distros are at fixing bug. -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
** Changed in: linux (Ubuntu) Status: In Progress => Fix Committed -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
Proposing for inclusion in the karmic release kernel. -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
** Branch linked: lp:ubuntu/qemu-kvm -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
This bug was fixed in the package qemu-kvm - 0.11.0-0ubuntu2 --- qemu-kvm (0.11.0-0ubuntu2) karmic; urgency=low * debian/patches/09_qemu-fix-qcow2-backing-file-with-virtio.patch: cherry-pick patch from Fedora, fix virtio/qcow2 issues, LP: #420423 * debian/patches/10_qemu-allow-pulseaudio-to-be-the-default.patch: needed to complete the fix for LP: #304649 * debian/control: improve description of qemu-kvm-extras, LP: #448655 -- Dustin KirklandSun, 11 Oct 2009 13:16:11 -0500 ** Changed in: qemu-kvm (Ubuntu) Status: In Progress => Fix Released -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
Andy- Brilliant! Works like a champ! Can we please get this into Karmic ASAP! :-Dustin -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 420423] Re: Running karmic as virtual machine with virtio hard disk outputs I/O errors
There's a related bug in qemu-kvm, which I'm about to upload a fix for, affecting virtio and qcow2 disks. Andy's kernel fix is needed too. I'm testing that now. :-Dustin ** Summary changed: - Running karmic as virtual machine with virtio hard disk outputs I/O erros + Running karmic as virtual machine with virtio hard disk outputs I/O errors -- Running karmic as virtual machine with virtio hard disk outputs I/O errors https://bugs.launchpad.net/bugs/420423 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
