Public bug reported:
Binary package hint: apache2
Hi,
I am running Apache 2.2.8 on several Ubuntu VM's. These are all running
Ubuntu 2.6.24-19.41-virtual...
For some reason these systems are sporadically crashing and repeat the
following errors in syslog until the VM is reset. There does not appear
to be any pattern in how long apache is running before this occurs, it
can be weeks, days or hours. Does anybody have any idea why this may be
happening? I am thinking it may be a compatibility issue with Apache
2.2.8 and the 2.6.24-19.41-virtual kernel. More information can be
provided if required.
Jun 10 15:49:46 <server name> kernel: [55729.792727] BUG: soft lockup - CPU#3
stuck for 11s! [apache2:22615]
Jun 10 15:49:46 <server name> kernel: [55729.793231]
Jun 10 15:49:46 <server name> kernel: [55729.793317] Pid: 22615, comm: apache2
Not tainted (2.6.24-19-virtual #1)
Jun 10 15:49:46 <server name> kernel: [55729.793331] EIP:
0060:[native_flush_tlb_single+0x3/0x10] EFLAGS: 00200292 CPU: 3
Jun 10 15:49:46 <server name> kernel: [55729.793568] EIP is at
native_flush_tlb_single+0x3/0x10
Jun 10 15:49:46 <server name> kernel: [55729.793582] EAX: fff8b000 EBX:
000000b8 ECX: c044ee2c EDX: fff8b000
Jun 10 15:49:46 <server name> kernel: [55729.793591] ESI: fff8b000 EDI:
00000000 EBP: c03d4200 ESP: c39c7efc
Jun 10 15:49:46 <server name> kernel: [55729.793600] DS: 007b ES: 007b FS:
00d8 GS: 0033 SS: 0068
Jun 10 15:49:46 <server name> kernel: [55729.793629] CR0: 8005003b CR2:
083d7774 CR3: 1fb86000 CR4: 00000690
Jun 10 15:49:46 <server name> kernel: [55729.793686] DR0: 00000000 DR1:
00000000 DR2: 00000000 DR3: 00000000
Jun 10 15:49:46 <server name> kernel: [55729.793722] DR6: ffff0ff0 DR7: 00000400
Jun 10 15:49:46 <server name> kernel: [55729.793790]
[loop:kunmap_atomic+0x90/0x2c50] kunmap_atomic+0x90/0xc0
Jun 10 15:49:46 <server name> kernel: [55729.793972]
[handle_mm_fault+0x27e/0x730] handle_mm_fault+0x27e/0x730
Jun 10 15:49:46 <server name> kernel: [55729.793980] [vma_merge+0x144/0x1d0]
vma_merge+0x144/0x1d0
Jun 10 15:49:46 <server name> kernel: [55729.793984] [do_brk+0x195/0x240]
do_brk+0x195/0x240
Jun 10 15:49:46 <server name> kernel: [55729.793987]
[do_page_fault+0x13f/0x730] do_page_fault+0x13f/0x730
Jun 10 15:49:46 <server name> kernel: [55729.793996] [do_page_fault+0x0/0x730]
do_page_fault+0x0/0x730
Jun 10 15:49:46 <server name> kernel: [55729.794002] [error_code+0x72/0x80]
error_code+0x72/0x80
Jun 10 15:49:46 <server name> kernel: [55729.794033] =======================
Many thanks,
James
** Affects: apache2 (Ubuntu)
Importance: Undecided
Status: New
--
BUG: soft lockup - CPU#3 stuck for 11s! [apache2:22615]
https://bugs.launchpad.net/bugs/592326
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