----- Original Message -----
> From: "Christoph Lameter" <cl@xxxxxxxxx>
> To: "CAI Qian" <caiqian@xxxxxxxxxx>
> Cc: "David Rientjes" <rientjes@xxxxxxxxxx>, "linux-mm" <linux-mm@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, "Oleg
> Nesterov" <oleg@xxxxxxxxxx>
> Sent: Tuesday, March 26, 2013 2:00:16 AM
> Subject: Re: BUG at kmem_cache_alloc
>
>
> Please enable CONFIG_SLUB_DEBUG_ON or run the kernel with slub_debug
> on
> the command line to get detailed diagnostics as to what causes this.
>
Still running and will update ASAP. One thing I noticed was that trinity
threw out this error before the kernel crash.
[19380] Random reseed: 644697889
trinity(19380): Randomness reseeded to 0x266d4f21
trinity: trinity(19380) Randomness reseeded to 0x266d4f21
[19380] Random reseed: 1927643389
trinity(19380): Randomness reseeded to 0x72e580fd
trinity: trinity(19380) Randomness reseeded to 0x72e580fd
[watchdog] 9381710 iterations. [F:8140812 S:1240290]
[watchdog] 9383499 iterations. [F:8142333 S:1240558]
Session terminated, killing shell...
BUG!:
CHILD (pid:28825) GOT REPARENTED! parent pid:19380. Watchdog pid:19379
BUG!:
Last syscalls:
[0] pid:28515 call:settimeofday callno:10356
[1] pid:28822 call:setgid callno:322
[2] pid:28581 call:init_module callno:3622
[3] pid:28825 call:readlinkat callno:403
child 28581 exiting
child 28515 exiting
...killed.
Then, some tests in LTP called epoll triggered it eventually.
[ 9788.955733] BUG: unable to handle kernel paging request at 00000000fffffff7
[ 9788.956687] IP: [<ffffffff811876a8>] kmem_cache_alloc+0x68/0x1e0
[ 9788.956687] PGD bebd3067 PUD 0
[ 9788.956687] Oops: 0000 [#1] SMP
[ 9788.956687] Modules linked in: l2tp_ppp l2tp_netlink l2tp_core tun cmtp kernelcapi bnep fuse rfcomm hidp ipt_ULOG rds af_key pppoe pppox ppp_generic slhc af_802154 nfc atm ip6table_filter ip6_tables iptable_filter ip_tables btrfs zlib_deflate vfat fat nfs_layout_nfsv41_files nfsv4 auth_rpcgss nfsv3 nfs_acl nfsv2 nfs lockd sunrpc fscache nfnetlink_log nfnetlink bluetooth rfkill arc4 md4 nls_utf8 cifs dns_resolver nf_tproxy_core nls_koi8_u nls_cp932 ts_kmp sctp sg i5000_edac coretemp edac_core kvm_intel iTCO_wdt iTCO_vendor_support kvm lpc_ich ipmi_si ipmi_msghandler i5k_amb mfd_core hpilo hpwdt shpchp serio_raw microcode pcspkr xfs sd_mod crc_t10dif sr_mod cdrom ata_generic hpsa pata_acpi radeon i2c_algo_bit drm_kms_helper ttm drm ata_piix libata i2c_core bnx2 bnx2x cciss 3w_9xxx libcrc32c dm_mirror dm_region_hash dm_log dm_mod iscsi_tcp be2iscsi bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi libiscsi_tcp qla4xxx libiscsi scsi_transport_iscsi iscsi_ibft iscsi_boot_sysfs [last unloaded: ipt_REJECT]
[ 9788.956687] CPU 0
[ 9788.956687] Pid: 25412, comm: epoll-ltp Tainted: G W I 3.8.4+ #1 HP ProLiant DL380 G5
[ 9788.956687] RIP: 0010:[<ffffffff811876a8>] [<ffffffff811876a8>] kmem_cache_alloc+0x68/0x1e0
[ 9788.956687] RSP: 0018:ffff8800bbee9dd0 EFLAGS: 00010246
[ 9788.956687] RAX: 0000000000000000 RBX: ffff8801a356e5c0 RCX: 0000000000000000
[ 9788.956687] RDX: 0000000000036b0a RSI: 00000000000080d0 RDI: ffff8801a906ad00
[ 9788.956687] RBP: ffff8800bbee9e10 R08: 00000000000176b0 R09: ffffffff810fe2e2
[ 9788.956687] R10: 0000000000000016 R11: ffffffffffffffdc R12: 00000000fffffff7
[ 9788.956687] R13: 00000000000080d0 R14: ffff8801a906ad00 R15: ffff8801a906ad00
[ 9788.956687] FS: 00007fbf42058740(0000) GS:ffff8801afc00000(0000) knlGS:0000000000000000
[ 9788.956687] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 9788.956687] CR2: 00000000fffffff7 CR3: 00000000aece6000 CR4: 00000000000407f0
[ 9788.956687] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 9788.956687] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 9788.956687] Process epoll-ltp (pid: 25412, threadinfo ffff8800bbee8000, task ffff8801a6524c50)
[ 9788.956687] Stack:
[ 9788.956687] ffffffff810fe2e2 ffffffff8108cf0f 0000000001200011 ffff8801a356e5c0
[ 9788.956687] 0000000000000000 00007fbf42058a10 0000000000000000 ffff8801a356e5c0
[ 9788.956687] ffff8800bbee9e30 ffffffff810fe2e2 0000000000000000 0000000001200011
[ 9788.956687] Call Trace:
[ 9788.956687] [<ffffffff810fe2e2>] ? __delayacct_tsk_init+0x22/0x40
[ 9788.956687] [<ffffffff8108cf0f>] ? prepare_creds+0xdf/0x190
[ 9788.956687] [<ffffffff810fe2e2>] __delayacct_tsk_init+0x22/0x40
[ 9788.956687] [<ffffffff8106027f>] copy_process.part.25+0x31f/0x13f0
[ 9788.956687] [<ffffffff8106765b>] ? do_wait+0x12b/0x250
[ 9788.956687] [<ffffffff81097f3e>] ? wake_up_new_task+0xfe/0x160
[ 9788.956687] [<ffffffff81061449>] do_fork+0xa9/0x350
[ 9788.956687] [<ffffffff81068810>] ? sys_wait4+0x80/0xf0
[ 9788.956687] [<ffffffff81061776>] sys_clone+0x16/0x20
[ 9788.956687] [<ffffffff8161a7f9>] stub_clone+0x69/0x90
[ 9788.956687] [<ffffffff8161a499>] ? system_call_fastpath+0x16/0x1b
[ 9788.956687] Code: 90 4d 89 fe 4d 8b 06 65 4c 03 04 25 c8 db 00 00 49 8b 50 08 4d 8b 20 4d 85 e4 0f 84 2b 01 00 00 49 63 46 20 4d 8b 06 41 f6 c0 0f <49> 8b 1c 04 0f 85 55 01 00 00 48 8d 4a 01 4c 89 e0 65 49 0f c7
[ 9788.956687] RIP [<ffffffff811876a8>] kmem_cache_alloc+0x68/0x1e0
[ 9788.956687] RSP <ffff8800bbee9dd0>
[ 9788.956687] CR2: 00000000fffffff7
[ 9789.029177] ---[ end trace 001669df502cd1ce ]---
CAI Qian
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