linux-kernel - Re: WARNING: at mm/page-writeback.c:1990 __set_page_dirty

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Date:	Fri, 1 Jun 2012 13:16:06 -0400
From:	Dave Jones <davej@...hat.com>
To:	Hugh Dickins <hughd@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Cong Wang <amwang@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: WARNING: at mm/page-writeback.c:1990
 __set_page_dirty_nobuffers+0x13a/0x170()

On Fri, Jun 01, 2012 at 12:12:05PM -0400, Dave Jones wrote:

 
 > So with this applied, I don't seem to be able to trigger it. It's been running two hours
 > so far. I'll leave it running, but right now I don't know what to make of this.

I can trigger the list corruption still, but not the WARN.

	Dave

[  551.980716] ------------[ cut here ]------------
[  551.981646] WARNING: at lib/list_debug.c:59 __list_del_entry+0xa1/0xd0()
[  551.983461] list_del corruption. prev->next should be ffffea0004b305a0, but was ffffea0004f117e0
[  551.984406] Modules linked in: tun fuse nfnetlink binfmt_misc ipt_ULOG sctp libcrc32c caif_socket caif phonet bluetooth rfkill can llc2 pppoe pppox ppp_generic slhc irda crc_ccitt rds af_key decnet rose x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode usb_debug serio_raw pcspkr i2c_i801 e1000e nfsd nfs_acl auth_rpcgss lockd sunrpc i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan]
[  551.988121] Pid: 21459, comm: trinity-child2 Not tainted 3.4.0+ #49
[  551.989063] Call Trace:
[  551.990012]  [<ffffffff8104912f>] warn_slowpath_common+0x7f/0xc0
[  551.990956]  [<ffffffff81049226>] warn_slowpath_fmt+0x46/0x50
[  551.991902]  [<ffffffff81329171>] __list_del_entry+0xa1/0xd0
[  551.992849]  [<ffffffff81145ad9>] move_freepages_block+0x159/0x190
[  551.993800]  [<ffffffff81165be3>] suitable_migration_target.isra.15+0x1b3/0x1d0
[  551.994761]  [<ffffffff81165e2e>] compaction_alloc+0x22e/0x2f0
[  551.995731]  [<ffffffff81198547>] migrate_pages+0xc7/0x540
[  551.996684]  [<ffffffff81165c00>] ? suitable_migration_target.isra.15+0x1d0/0x1d0
[  551.997638]  [<ffffffff81166b86>] compact_zone+0x216/0x480
[  551.998593]  [<ffffffff810b15f8>] ? trace_hardirqs_off_caller+0x28/0xc0
[  551.999558]  [<ffffffff811670cd>] compact_zone_order+0x8d/0xd0
[  552.000525]  [<ffffffff81149735>] ? get_page_from_freelist+0x565/0x970
[  552.001502]  [<ffffffff811671d9>] try_to_compact_pages+0xc9/0x140
[  552.002548]  [<ffffffff8163f491>] __alloc_pages_direct_compact+0xaa/0x1d0
[  552.003592]  [<ffffffff8114a14b>] __alloc_pages_nodemask+0x60b/0xab0
[  552.004650]  [<ffffffff810b15f8>] ? trace_hardirqs_off_caller+0x28/0xc0
[  552.005708]  [<ffffffff810b4f00>] ? __lock_acquire+0x2d0/0x1aa0
[  552.007332]  [<ffffffff81189ec6>] alloc_pages_vma+0xb6/0x190
[  552.008953]  [<ffffffff8119cfb3>] do_huge_pmd_anonymous_page+0x133/0x310
[  552.010584]  [<ffffffff8116c2e2>] handle_mm_fault+0x242/0x2e0
[  552.012233]  [<ffffffff8116c592>] __get_user_pages+0x142/0x560
[  552.013891]  [<ffffffff81171c58>] ? mmap_region+0x3f8/0x630
[  552.015753]  [<ffffffff8116ca62>] get_user_pages+0x52/0x60
[  552.017348]  [<ffffffff8116d952>] make_pages_present+0x92/0xc0
[  552.018936]  [<ffffffff81171c06>] mmap_region+0x3a6/0x630
[  552.021074]  [<ffffffff81050e2c>] ? do_setitimer+0x1cc/0x310
[  552.022367]  [<ffffffff811721ed>] do_mmap_pgoff+0x35d/0x3b0
[  552.023406]  [<ffffffff811722a6>] ? sys_mmap_pgoff+0x66/0x240
[  552.024429]  [<ffffffff811722c4>] sys_mmap_pgoff+0x84/0x240
[  552.025445]  [<ffffffff81322cbe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[  552.026466]  [<ffffffff81006ca2>] sys_mmap+0x22/0x30
[  552.027486]  [<ffffffff81651c92>] system_call_fastpath+0x16/0x1b
[  552.028521] ---[ end trace c092df1e14d11d14 ]---

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