retitle 596449 linux-image-2.6.32-bpo.5-openvz-amd64: kernel BUG/OOPS
thanks
I'm also suffering this slightly different-looking kernel BUG but I
think it's related to the same issue. Again this was triggered by a PHP
web application, but not phpmyadmin this time, and this was with APC
disabled (APC uses SHM heavily, and that was mentioned in the backtrace
of the last crash).
The crashed process remains unkillable except by reboot, and 'ps ax'
freezes, as well as other tools such as 'lsof'.
I'm going to test with 2.6.32-5-openvz-amd64 from unstable now, to
establish if this is purely related to the backported package, or if
it's potentially an issue for squeeze.
[99948.571072] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
[99948.577964] IP: [<ffffffff8117d2ff>] __rb_rotate_left+0x7/0x5b
[99948.577964] PGD 7d0af067 PUD 7e858067 PMD 0
[99948.577964] Oops: 0000 [#1] SMP
[99948.591393] last sysfs file:
/sys/devices/system/edac/mc/mc1/csrow2/ch1_dimm_label
[99948.591393] CPU 1
[99948.591393] Modules linked in: st osst vzethdev vznetdev simfs vzrst
vzcpt vzdquota vzmon vzdev xt_DSCP xt_owner xt_length xt_hl xt_tcpmss
xt_TCPMSS xt_limit xt_dscp nfsd exportfs nfs lockd fscache nfs_acl
auth_rpcgss sunrpc bridge ipt_MASQUERADE iptable_nat nf_nat
iptable_mangle ipt_REJECT ipt_LOG xt_tcpudp nf_conntrack_ipv4
nf_defrag_ipv4 xt_state nf_conntrack xt_hashlimit act_police
xt_multiport cls_u32 sch_ingress sch_htb iptable_filter ip_tables
x_tables aufs(C) 8021q garp stp powernow_k8 ipmi_watchdog ipmi_si
ipmi_devintf ipmi_msghandler loop arc4 ecb rtl8187 mac80211 led_class
cfg80211 rfkill eeprom_93cx6 container evdev snd_pcm snd_timer snd
soundcore snd_page_alloc amd64_edac_mod psmouse serio_raw k8temp
edac_core edac_mce_amd processor button pcspkr shpchp i2c_amd756
i2c_core pci_hotplug amd_rng rng_core reiserfs sha256_generic aes_x86_64
aes_generic cbc dm_crypt dm_mirror dm_region_hash dm_log dm_snapshot
dm_mod raid456 async_raid6_recov async_pq raid6_pq async_xor xor
async_memcpy async_tx raid1 md_mod qla2xxx sd_mod crc_t10dif sg sr_mod
cdrom ata_generic scsi_transport_fc pata_amd ohci_hcd mptspi mptscsih
tg3 mptbase scsi_tgt floppy aic7xxx scsi_transport_spi libphy libata
usbcore scsi_mod nls_base thermal fan thermal_sys [last unloaded: st]
[99948.591393] Pid: 15838, comm: apache2 Tainted: G C
2.6.32-bpo.5-openvz-amd64 #1 budarin Sun Fire V20z
[99948.591393] RIP: 0010:[<ffffffff8117d2ff>] [<ffffffff8117d2ff>]
__rb_rotate_left+0x7/0x5b
[99948.591393] RSP: 0018:ffff88007c0e3de0 EFLAGS: 00010282
[99948.591393] RAX: 0000000000000000 RBX: ffff88001a84b5b0 RCX:
0000000000000000
[99948.591393] RDX: 0000000000000000 RSI: ffff88007d42a1c8 RDI:
ffff88007d666df0
[99948.591393] RBP: ffff88001a84b7c0 R08: ffff88007d666240 R09:
ffff88007d42a1c0
[99948.591393] R10: 0000000000016940 R11: 0000000000000202 R12:
ffff88007d666df0
[99948.591393] R13: ffff88001a84b5b0 R14: ffff88007d42a1c8 R15:
ffff88007d666210
[99948.591393] FS: 00000000413b4950(0063) GS:ffff880001900000(0000)
knlGS:00000000b722dbb0
[99948.591393] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[99948.591393] CR2: 0000000000000010 CR3: 0000000037946000 CR4:
00000000000006e0
[99948.591393] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[99948.591393] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[99948.591393] Process apache2 (pid: 15838, veid=1003, threadinfo
ffff88007c0e2000, task ffff88007c245000)
[99948.591393] Stack:
[99948.591393] ffffffff8117d468 ffff88001a84b790 ffff88001a84b790
ffff88007d42a1c0
[99948.591393] <0> ffff88001a84b5b0 ffff88001a84b5c0 ffffffff810d245d
ffff8800723435a8
[99948.591393] <0> ffffffff810d24d2 0000000067548000 ffff88001a84b790
00000000fffffff4
[99948.591393] Call Trace:
[99948.591393] [<ffffffff8117d468>] ? rb_insert_color+0xba/0xe2
[99948.591393] [<ffffffff810d245d>] ? __vma_link+0x58/0x61
[99948.591393] [<ffffffff810d24d2>] ? vma_link+0x6c/0x9b
[99948.591393] [<ffffffff810d3d2e>] ? mmap_region+0x41c/0x5c5
[99948.591393] [<ffffffff810c866e>] ? sys_mmap_pgoff+0xf4/0x19d
[99948.591393] [<ffffffff810fc9be>] ? sys_fcntl+0x454/0x464
[99948.591393] [<ffffffff81010c12>] ? system_call_fastpath+0x16/0x1b
[99948.591393] Code: 00 31 c0 eb 19 ff c0 48 89 ee 48 c7 c7 58 30 65 81
89 43 08 e8 c0 b6 16 00 b8 01 00 00 00 5a 5b 5d c3 90 90 48 8b 4f 08 4c
8b 07 <48> 8b 51 10 49 83 e0 fc 48 85 d2 48 89 57 08 74 0c 48 8b 02 83
[99948.591393] RIP [<ffffffff8117d2ff>] __rb_rotate_left+0x7/0x5b
[99948.591393] RSP <ffff88007c0e3de0>
[99948.591393] CR2: 0000000000000010
[99948.941658] ---[ end trace 36e642d477aeb1ac ]---
Regards,
--
Steven Chamberlain
ste...@pyro.eu.org
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