Description of problem:

I see the following with dmesg:

[    6.121759] dracut: Switching root
[    6.773143] readahead-collector: starting
[    7.292207] udev[659]: starting version 161
[    7.625514] microcode: CPU0: patch_level=0x1000065
[    7.817865] ------------[ cut here ]------------
[    7.817878] WARNING: at lib/list_debug.c:26 __list_add+0x3f/0x81()
[    7.817882] Hardware name: empty
[    7.817885] list_add corruption. next->prev should be prev (ffffffff81a7ae20), but was ffffffffa00886d8. (next=ffffffffa00816d8).
[    7.817888] Modules linked in: edac_mce_amd(+) microcode(+) ata_generic pata_acpi pata_amd sata_nv [last unloaded: scsi_wait_scan]
[    7.817903] Pid: 714, comm: modprobe Not tainted 2.6.35.6-48.fc14.x86_64 #1
[    7.817906] Call Trace:
[    7.817916]  [<ffffffff8104d7c1>] warn_slowpath_common+0x85/0x9d
[    7.817922]  [<ffffffff8104d87c>] warn_slowpath_fmt+0x46/0x48
[    7.817926]  [<ffffffff8122637a>] __list_add+0x3f/0x81
[    7.817934]  [<ffffffff81217dcd>] module_bug_finalize+0xb9/0xca
[    7.817940]  [<ffffffff81028856>] module_finalize+0x156/0x165
[    7.817948]  [<ffffffff8107bfff>] load_module+0x1170/0x1b74
[    7.817952]  [<ffffffff81079981>] ? setup_modinfo_srcversion+0x0/0x29
[    7.817961]  [<ffffffff81116806>] ? fsnotify_modify+0x6c/0x74
[    7.817965]  [<ffffffff8107ca53>] sys_init_module+0x50/0x1e4
[    7.817970]  [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
[    7.817973] ---[ end trace 82f5ba3703916178 ]---
[    7.817976] ------------[ cut here ]------------
[    7.817979] WARNING: at lib/list_debug.c:30 __list_add+0x68/0x81()
[    7.817981] Hardware name: empty
[    7.817984] list_add corruption. prev->next should be next (ffffffffa00816d8), but was ffffffffa00886d8. (prev=ffffffff81a7ae20).
[    7.817986] Modules linked in: edac_mce_amd microcode(+) ata_generic pata_acpi pata_amd sata_nv [last unloaded: scsi_wait_scan]
[    7.817994] Pid: 714, comm: modprobe Tainted: G        W   2.6.35.6-48.fc14.x86_64 #1
[    7.817996] Call Trace:
[    7.817999]  [<ffffffff8104d7c1>] warn_slowpath_common+0x85/0x9d
[    7.818003]  [<ffffffff8104d87c>] warn_slowpath_fmt+0x46/0x48
[    7.818007]  [<ffffffff812263a3>] __list_add+0x68/0x81
[    7.818010]  [<ffffffff81217dcd>] module_bug_finalize+0xb9/0xca
[    7.818014]  [<ffffffff81028856>] module_finalize+0x156/0x165
[    7.818018]  [<ffffffff8107bfff>] load_module+0x1170/0x1b74
[    7.818022]  [<ffffffff81079981>] ? setup_modinfo_srcversion+0x0/0x29
[    7.818026]  [<ffffffff81116806>] ? fsnotify_modify+0x6c/0x74
[    7.818030]  [<ffffffff8107ca53>] sys_init_module+0x50/0x1e4
[    7.818033]  [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
[    7.818036] ---[ end trace 82f5ba3703916179 ]---
[    7.825231] ------------[ cut here ]------------
[    7.825243] WARNING: at lib/list_debug.c:48 list_del+0x35/0x8b()
[    7.825247] Hardware name: empty
[    7.825250] list_del corruption. prev->next should be ffffffffa00886d8, but was ffffffffa00816d8
[    7.825253] Modules linked in: edac_mce_amd microcode(+) ata_generic pata_acpi pata_amd sata_nv [last unloaded: scsi_wait_scan]
[    7.825266] Pid: 705, comm: modprobe Tainted: G        W   2.6.35.6-48.fc14.x86_64 #1
[    7.825269] Call Trace:
[    7.825279]  [<ffffffff8104d7c1>] warn_slowpath_common+0x85/0x9d
[    7.825287]  [<ffffffff81469116>] ? _raw_spin_lock_irq+0x1f/0x21
[    7.825291]  [<ffffffff8104d87c>] warn_slowpath_fmt+0x46/0x48
[    7.825295]  [<ffffffff81467b5d>] ? _cond_resched+0xe/0x22
[    7.825299]  [<ffffffff812262e5>] list_del+0x35/0x8b
[    7.825306]  [<ffffffff81217dee>] module_bug_cleanup+0x10/0x12
[    7.825313]  [<ffffffff81028883>] module_arch_cleanup+0x1e/0x23
[    7.825320]  [<ffffffff8107c85d>] load_module+0x19ce/0x1b74
[    7.825324]  [<ffffffff81079981>] ? setup_modinfo_srcversion+0x0/0x29
[    7.825333]  [<ffffffff81116806>] ? fsnotify_modify+0x6c/0x74
[    7.825337]  [<ffffffff8107ca53>] sys_init_module+0x50/0x1e4
[    7.825342]  [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
[    7.825345] ---[ end trace 82f5ba370391617a ]---
[    7.825348] ------------[ cut here ]------------
[    7.825352] WARNING: at lib/list_debug.c:51 list_del+0x5e/0x8b()
[    7.825354] Hardware name: empty
[    7.825356] list_del corruption. next->prev should be ffffffffa00886d8, but was ffffffff81a7ae20
[    7.825358] Modules linked in: edac_mce_amd microcode(+) ata_generic pata_acpi pata_amd sata_nv [last unloaded: scsi_wait_scan]
[    7.825366] Pid: 705, comm: modprobe Tainted: G        W   2.6.35.6-48.fc14.x86_64 #1
[    7.825369] Call Trace:
[    7.825372]  [<ffffffff8104d7c1>] warn_slowpath_common+0x85/0x9d
[    7.825376]  [<ffffffff81469116>] ? _raw_spin_lock_irq+0x1f/0x21
[    7.825379]  [<ffffffff8104d87c>] warn_slowpath_fmt+0x46/0x48
[    7.825383]  [<ffffffff81467b5d>] ? _cond_resched+0xe/0x22
[    7.825386]  [<ffffffff8122630e>] list_del+0x5e/0x8b
[    7.825390]  [<ffffffff81217dee>] module_bug_cleanup+0x10/0x12
[    7.825394]  [<ffffffff81028883>] module_arch_cleanup+0x1e/0x23
[    7.825397]  [<ffffffff8107c85d>] load_module+0x19ce/0x1b74
[    7.825401]  [<ffffffff81079981>] ? setup_modinfo_srcversion+0x0/0x29
[    7.825406]  [<ffffffff81116806>] ? fsnotify_modify+0x6c/0x74
[    7.825410]  [<ffffffff8107ca53>] sys_init_module+0x50/0x1e4
[    7.825413]  [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
[    7.825416] ---[ end trace 82f5ba370391617b ]---
[    7.834045] EDAC MC: Ver: 2.1.0 Oct 22 2010



Version-Release number of selected component (if applicable):

Fedora 14 with kernel 2.6.35.6-48.fc14.x86_64

How reproducible:

Happens during every boot.

Additional info:

This system has four quad core Opteron chips with ECC memory and SATA disks.