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SubjectRe: AutoNUMA alpha14
On Tue, 29 May 2012, Kirill A. Shutemov wrote:

> <4>[ 732.253488] Call Trace:
> <4>[ 732.377354] [<ffffffff8107df90>] ? __init_waitqueue_head+0x60/0x60
> <4>[ 732.501250] [<ffffffff8107e075>] ? finish_wait+0x45/0x90
> <4>[ 732.623816] [<ffffffff8117b1e0>] ? __autonuma_migrate_page_remove+0x130/0x130
> <4>[ 732.748194] [<ffffffff8107d437>] kthread+0xb7/0xc0
> <4>[ 732.872468] [<ffffffff81668324>] kernel_thread_helper+0x4/0x10
> <4>[ 732.997588] [<ffffffff8107d380>] ? __init_kthread_worker+0x70/0x70
> <4>[ 733.120411] [<ffffffff81668320>] ? gs_change+0x13/0x13
> <4>[ 733.240230] Code: 4e 00 48 8b 05 6d 05 b8 00 a8 04 0f 84 b5 f9 ff ff 48 c7 c7 b0 c9 9e 81 31 c0 e8 04 6c 4d 00 e9 a2 f9 ff ff 66 90 e8 8a 87 4d 00 <0f> 0b 48 c7 c7 d0 c9 9e 81 31 c0 e8 e8 6b 4d 00 e9 73 f9 ff ff
> <1>[ 733.489612] RIP [<ffffffff8117baf5>] knuma_migrated+0x915/0xa50
> <4>[ 733.614281] RSP <ffff88026c8b7d40>
> <4>[ 733.736855] ---[ end trace 25052e4d75b2f1f6 ]---
>

Similar problem with __autonuma_migrate_page_remove here.

[ 1945.516632] ------------[ cut here ]------------
[ 1945.516636] WARNING: at lib/list_debug.c:50 __list_del_entry+0x63/0xd0()
[ 1945.516642] Hardware name: ProLiant DL585 G5
[ 1945.516651] list_del corruption, ffff88017d68b068->next is LIST_POISON1 (dead000000100100)
[ 1945.516682] Modules linked in: ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle lockd ip6t_REJECT sunrpc nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables iptable_nat nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack mperf freq_table kvm_amd kvm pcspkr amd64_edac_mod edac_core serio_raw bnx2 microcode edac_mce_amd shpchp k10temp hpilo ipmi_si ipmi_msghandler hpwdt qla2xxx hpsa ata_generic pata_acpi scsi_transport_fc scsi_tgt cciss pata_amd radeon i2c_algo_bit drm_kms_helper ttm drm i2c_core [last unloaded: scsi_wait_scan]
[ 1945.516694] Pid: 150, comm: knuma_migrated0 Tainted: G W 3.4.0aa_alpha+ #3
[ 1945.516701] Call Trace:
[ 1945.516710] [<ffffffff8105788f>] warn_slowpath_common+0x7f/0xc0
[ 1945.516717] [<ffffffff81057986>] warn_slowpath_fmt+0x46/0x50
[ 1945.516726] [<ffffffff812f9713>] __list_del_entry+0x63/0xd0
[ 1945.516735] [<ffffffff812f9791>] list_del+0x11/0x40
[ 1945.516743] [<ffffffff81165b98>] __autonuma_migrate_page_remove+0x48/0x80
[ 1945.516746] [<ffffffff81165e66>] knuma_migrated+0x296/0x8a0
[ 1945.516749] [<ffffffff8107a200>] ? wake_up_bit+0x40/0x40
[ 1945.516758] [<ffffffff81165bd0>] ? __autonuma_migrate_page_remove+0x80/0x80
[ 1945.516766] [<ffffffff81079cc3>] kthread+0x93/0xa0
[ 1945.516780] [<ffffffff81626f24>] kernel_thread_helper+0x4/0x10
[ 1945.516791] [<ffffffff81079c30>] ? flush_kthread_worker+0x80/0x80
[ 1945.516798] [<ffffffff81626f20>] ? gs_change+0x13/0x13
[ 1945.516800] ---[ end trace 7cab294af87bd79f ]---

I am getting this warning continually during memory intensive operations,
e.g. AutoNUMA benchmarks from Andrea.

thanks,
Petr H


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