Your message dated Sun, 07 Feb 2016 22:43:09 +0000 with message-id <E1aSY2v-0006KG-RP@deadeye> and subject line Closing bugs assigned to linux-2.6 package has caused the Debian Bug report #686847, regarding KVM guest slows down and finally hangs on I/O to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 686847: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686847 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Package: linux-2.6 Version: 2.6.32-45 Severity: normal Linux vmXXXX.cs16.seeweb.it 2.6.32-5-amd64 #1 SMP Sun May 6 04:00:17 UTC 2012 x86_64 GNU/Linux This is a fully up to date squeeze system running as a guest on a RHEL 6.2 host. 1 CPU, 1 GB of RAM, virtio net and disk (using XFS). We have hundreds of similar guests but only this one shows this problem. The system suddenly slows down and then all processes hang. The getty on the virtual console is responsive to input, but it hangs when it tries to fork+exec login. The workload is unmemorable, apparently mostly light apache/PHP. The kernel logs this same stack trace for all (?) processes: INFO: task apache2:12623 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. apache2 D 0000000000000000 0 12623 12619 0x00000000 ffffffff814611f0 0000000000000086 0000000000000292 ffffffff8118ac27 ffff88002faf8000 000000108102cdc4 000000000000f9e0 ffff880003113fd8 0000000000015780 0000000000015780 ffff88002faf8000 ffff88002faf82f8 Call Trace: [<ffffffff8118ac27>] ? cfq_set_request+0x2af/0x319 [<ffffffff8102cdc4>] ? pvclock_clocksource_read+0x3a/0x8b [<ffffffff812fb3fa>] ? io_schedule+0x73/0xb7 [<ffffffff8117f6e9>] ? get_request_wait+0xf0/0x188 [<ffffffff81064f92>] ? autoremove_wake_function+0x0/0x2e [<ffffffff8117fa78>] ? __make_request+0x2f7/0x428 [<ffffffff81191f63>] ? radix_tree_tag_clear+0x93/0xf1 [<ffffffff8117e247>] ? generic_make_request+0x299/0x2f9 [<ffffffff81192109>] ? radix_tree_tag_set+0x65/0xc6 [<ffffffff8117e37d>] ? submit_bio+0xd6/0xf2 [<ffffffff810ba9a9>] ? test_set_page_writeback+0xe0/0xef [<ffffffff810d8be8>] ? swap_writepage+0x9b/0xa5 [<ffffffff810be529>] ? shrink_page_list+0x375/0x623 [<ffffffff810bea8b>] ? shrink_active_list+0x2b4/0x2d9 [<ffffffff810bef0c>] ? shrink_list+0x45c/0x767 [<ffffffff812fb320>] ? thread_return+0x79/0xe0 [<ffffffff810bf497>] ? shrink_zone+0x280/0x342 [<ffffffff812fb4ab>] ? _cond_resched+0x24/0x2f [<ffffffff810bf69a>] ? shrink_slab+0x141/0x153 [<ffffffff810c055e>] ? try_to_free_pages+0x232/0x38e [<ffffffff810bd553>] ? isolate_pages_global+0x0/0x20f [<ffffffff810ba5ec>] ? __alloc_pages_nodemask+0x3d4/0x5fc [<ffffffff810d8e00>] ? read_swap_cache_async+0x5d/0xf3 [<ffffffff810d8eed>] ? swapin_readahead+0x57/0x98 [<ffffffff810ccdfd>] ? handle_mm_fault+0x47f/0x80f [<ffffffff812feb96>] ? do_page_fault+0x2e0/0x2fc [<ffffffff812fca35>] ? page_fault+0x25/0x30 -- ciao, Marco
signature.asc
Description: Digital signature
--- End Message ---
--- Begin Message ---Version: 3.4.1-1~experimental.1+rm Debian 6.0 Long Term Support has now ended, and the 'linux-2.6' source package will no longer be updated. This bug is being closed on the assumption that it does not affect the kernel versions in newer Debian releases. If you can still reproduce this bug in a newer release, please reopen the bug report and reassign it to 'src:linux' and the affected version of the package. You can find the package version for the running kernel by running: uname -v or the versions of all installed kernel packages by running: dpkg -l 'linux-image-[34]*' | grep ^.i and looking at the third column. I apologise that we weren't able to provide a specific resolution for this bug. Ben. -- Ben Hutchings - Debian developer, member of Linux kernel and LTS teams
--- End Message ---
