I've been running 2.6.35.5 with fscache on with pretty good results on moderately loaded boxes. Moving to a more heavily loaded box, fscache only lasted a couple of hours. I saw this same error a number of months back. There's pages and pages more of soft lockup errors. The box was pretty much unusable at this point. This is a Dell Poweredge 1950, running Lenny 64-bit. The fscache directory lives on its own disk, but it's a regular disk (waiting on SSDs for these boxes), which may complicate things. One other interesting thing is that the NFS server here is a Netapp GX cluster, so there's only one explicit mount and the various submounts underneath it happen in the background (i.e. there's only one entry in fstab and then as the submounts get used, the new mount entries show up in /proc/mounts). Here's the relevant BUG. I included some 'preemptive burial' messages too but I abbreviated them a bit, since there were hundreds. The "Object already preemptively buried" was an error I don't recall seeing before either, but only occurs a good hour prior to the BUG message. Sep 28 21:53:09 server kernel: [ 3364.596729] [kslowd] preemptive burial: OBJ123e8 [OBJECT_RECYCLING] ffff88008c160900 ... Lots more "preemptive burial" ... Sep 28 21:53:36 server kernel: [ 3391.332790] CacheFiles: Error: Object already preemptively buried Sep 28 21:53:36 server kernel: [ 3391.333675] [kslowd] preemptive burial: OBJ127d1 [OBJECT_RECYCLING] ffff88009d776780 ... Lots more "preemptive burial" ... Sep 28 21:53:36 server kernel: [ 3391.334814] [kslowd] preemptive burial: OBJ127d4 [OBJECT_RECYCLING] ffff880094fb8a40 Sep 28 22:00:20 server kernel: [ 3795.025010] REISERFS warning (device sdb3): jdm-20004 reiserfs_delete_xattrs: Couldn't delete all xattrs (-2) Sep 28 22:00:20 server kernel: [ 3795.025012] Sep 28 22:05:35 server kernel: [ 4110.162196] [kslowd] preemptive burial: OBJ16bd2 [OBJECT_RECYCLING] ffff880014b15500 ... Lots more "preemptive burial" ... Sep 28 22:05:38 server kernel: [ 4113.285955] [kslowd] preemptive burial: OBJ16bb3 [OBJECT_RECYCLING] ffff88007dc94140 Sep 28 22:25:55 server kernel: [ 5330.667045] REISERFS warning (device sdb3): jdm-20002 reiserfs_xattr_get: Invalid hash for xattr (user.CacheFiles.cache) associated with [8891 170520 0x0 SD] Sep 28 22:35:15 server kernel: [ 5890.668455] [kslowd] preemptive burial: OBJ22648 [OBJECT_RECYCLING] ffff8800840bd440 ... Lots more "preemptive burial" ... Sep 28 22:35:27 server kernel: [ 5902.658162] [kslowd] preemptive burial: OBJ22098 [OBJECT_RECYCLING] ffff8800186a7440 Sep 28 23:04:12 server kernel: [ 7625.014006] Sep 28 23:04:12 server kernel: [ 7625.014010] CacheFiles: Error: Unexpected object collision Sep 28 23:04:12 server kernel: [ 7625.014015] object: OBJ2da67 Sep 28 23:04:12 server kernel: [ 7625.014018] objstate=OBJECT_LOOKING_UP fl=0 swfl=a ev=0[7b] Sep 28 23:04:12 server kernel: [ 7625.014021] ops=0 inp=0 exc=0 Sep 28 23:04:12 server kernel: [ 7625.014024] parent=ffff8800cab7fc00 Sep 28 23:04:12 server kernel: [ 7625.014028] cookie=ffff880046822c48 [pr=ffff88012d3e2f18 nd=ffff88000a15ac00 fl=7] Sep 28 23:04:12 server kernel: [ 7625.014031] key=[44] '000100001bb5008000000000f1157c01dd169a054dab0080000000 Sep 28 23:04:12 server kernel: [ 7625.014051] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 Sep 28 23:04:12 server kernel: [ 7625.014057] IP: [<ffffffff8114db49>] __fscache_read_or_alloc_pages+0x1ba/0x2f7 Sep 28 23:04:12 server kernel: [ 7625.014068] PGD 9db59067 PUD 65e79067 PMD 0 Sep 28 23:04:12 server kernel: [ 7625.014073] Oops: 0000 [#1] SMP Sep 28 23:04:12 server kernel: [ 7625.014075] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Sep 28 23:04:12 server kernel: [ 7625.014080] CPU 6 Sep 28 23:04:12 server kernel: [ 7625.014082] Modules linked in: dummy xt_mac ipt_addrtype reiserfs xfs power_meter loop joydev fan i5000_edac psmouse pcspkr evdev edac_core serio_raw tpm_tis shpchp tpm i5k_amb tpm_bios pci_hotplug rng_core processor button dcdbas sd_mod crc_t10dif sg sr_mod cdrom ide_pci_generic piix ide_core ata_generic mptsas ata_piix mptscsih libata mptbase scsi_transport_sas ehci_hcd uhci_hcd scsi_mod bnx2 thermal thermal_sys [last unloaded: scsi_wait_scan] Sep 28 23:04:12 server kernel: [ 7625.014116] Sep 28 23:04:12 server kernel: [ 7625.014120] Pid: 30340, comm: httpd Not tainted 2.6.35.5 #1 0DT097/PowerEdge 1950 Sep 28 23:04:12 server kernel: [ 7625.014123] RIP: 0010:[<ffffffff8114db49>] [<ffffffff8114db49>] __fscache_read_or_alloc_pages+0x1ba/0x2f7 Sep 28 23:04:12 server kernel: [ 7625.014129] RSP: 0018:ffff880045ab1a88 EFLAGS: 00010246 Sep 28 23:04:12 server kernel: [ 7625.014131] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff880001d91140 Sep 28 23:04:12 server kernel: [ 7625.014134] RDX: 0000000000000000 RSI: ffff880001bd7628 RDI: ffff880001bd7628 Sep 28 23:04:12 server kernel: [ 7625.014137] RBP: ffff880045ab1ac8 R08: ffffffff8114ad15 R09: 0000000000000000 Sep 28 23:04:12 server kernel: [ 7625.014140] R10: 0000000000000af2 R11: ffff880001d83f08 R12: ffff880037b81c00 Sep 28 23:04:12 server kernel: [ 7625.014143] R13: ffff880046822c48 R14: ffff8800c3363b00 R15: ffff880045ab1c08 Sep 28 23:04:12 server kernel: [ 7625.014147] FS: 00000339b30406e0(0000) GS:ffff880001d80000(0000) knlGS:0000000000000000 Sep 28 23:04:12 server kernel: [ 7625.014150] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 28 23:04:12 server kernel: [ 7625.014153] CR2: 0000000000000040 CR3: 000000000185a000 CR4: 00000000000006f0 Sep 28 23:04:12 server kernel: [ 7625.014156] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 28 23:04:12 server kernel: [ 7625.014159] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Sep 28 23:04:12 server kernel: [ 7625.014162] Process httpd (pid: 30340, threadinfo ffff880045ab0000, task ffff880040f52640) Sep 28 23:04:12 server kernel: [ 7625.014164] Stack: Sep 28 23:04:12 server kernel: [ 7625.014166] ffff880045ab1b78 ffff880045ab1b34 ffff88000a15aed0 00000000ffffff97 Sep 28 23:04:12 server kernel: [ 7625.014170] <0> ffff88000a15adb8 0000000000000001 ffff880045ab1b34 ffff880045ab1c08 Sep 28 23:04:12 server kernel: [ 7625.014174] <0> ffff880045ab1b18 ffffffff811d6ea9 00000000000200da ffff88000a15aed0 Sep 28 23:04:12 server kernel: [ 7625.014178] Call Trace: Sep 28 23:04:12 server kernel: [ 7625.014186] [<ffffffff811d6ea9>] __nfs_readpages_from_fscache+0x7f/0x148 Sep 28 23:04:12 server kernel: [ 7625.014191] [<ffffffff811bd43a>] nfs_readpages+0x108/0x1a7 Sep 28 23:04:12 server kernel: [ 7625.014198] [<ffffffff810e32bb>] ? alloc_pages_current+0xa8/0xd1 Sep 28 23:04:12 server kernel: [ 7625.014203] [<ffffffff810bdb18>] __do_page_cache_readahead+0x108/0x194 Sep 28 23:04:12 server kernel: [ 7625.014207] [<ffffffff810bdbc0>] ra_submit+0x1c/0x20 Sep 28 23:04:12 server kernel: [ 7625.014211] [<ffffffff810bde50>] ondemand_readahead+0x1b2/0x1c5 Sep 28 23:04:12 server kernel: [ 7625.014215] [<ffffffff810bdf3d>] page_cache_sync_readahead+0x38/0x3a Sep 28 23:04:12 server kernel: [ 7625.014221] [<ffffffff810b748a>] generic_file_aio_read+0x27c/0x5ec Sep 28 23:04:12 server kernel: [ 7625.014227] [<ffffffff811b2dff>] nfs_file_read+0xb1/0xde Sep 28 23:04:12 server kernel: [ 7625.014232] [<ffffffff810ed8bd>] do_sync_read+0xc7/0x10d Sep 28 23:04:12 server kernel: [ 7625.014238] [<ffffffff81218600>] ? security_file_permission+0x11/0x13 Sep 28 23:04:12 server kernel: [ 7625.014242] [<ffffffff810ee519>] vfs_read+0x11b/0x1e0 Sep 28 23:04:12 server kernel: [ 7625.014245] [<ffffffff810ee6a2>] sys_read+0x47/0x70 Sep 28 23:04:12 server kernel: [ 7625.014251] [<ffffffff81002b1b>] system_call_fastpath+0x16/0x1b Sep 28 23:04:12 server kernel: [ 7625.014253] Code: 28 ff d0 48 c7 c1 bc ed b4 81 48 c7 c2 c4 ed b4 81 4c 89 f6 4c 89 e7 e8 a1 fb ff ff 89 c3 85 c0 0f 88 8c 00 00 00 49 8b 44 24 70 <f6> 40 40 04 74 43 f0 ff 05 56 13 a0 00 71 09 f0 ff 0d 4d 13 a0 Sep 28 23:04:12 server kernel: [ 7625.014277] RIP [<ffffffff8114db49>] __fscache_read_or_alloc_pages+0x1ba/0x2f7 Sep 28 23:04:12 server kernel: [ 7625.014282] RSP <ffff880045ab1a88> Sep 28 23:04:12 server kernel: [ 7625.014284] CR2: 0000000000000040 Sep 28 23:04:12 server kernel: [ 7625.014774] ---[ end trace 4404c9c8f276dd3b ]--- Sep 28 23:04:12 server kernel: [ 7626.950525] 00400000009bdf51454000000000000000' Sep 28 23:04:12 server kernel: [ 7626.978624] xobject: OBJ2da66 Sep 28 23:04:12 server kernel: [ 7626.996390] xobjstate=OBJECT_DYING fl=0 swfl=8 ev=20[5] Sep 28 23:04:18 server kernel: [ 7633.240556] xops=1 inp=1 exc=0 Sep 28 23:04:18 server kernel: [ 7633.258847] xparent=ffff8800cab7fc00 Sep 28 23:04:18 server kernel: [ 7633.280255] xcookie=NULL Sep 28 23:04:20 server kernel: [ 7633.295456] ------------[ cut here ]------------ Sep 28 23:04:20 server kernel: [ 7633.305414] kernel BUG at fs/cachefiles/namei.c:201! Sep 28 23:04:20 server kernel: [ 7633.305414] invalid opcode: 0000 [#2] SMP Sep 28 23:04:20 server kernel: [ 7633.305414] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Sep 28 23:04:20 server kernel: [ 7633.305414] CPU 2 Sep 28 23:04:20 server kernel: [ 7633.305414] Modules linked in: dummy xt_mac ipt_addrtype reiserfs xfs power_meter loop joydev fan i5000_edac psmouse pcspkr evdev edac_core serio_raw tpm_tis shpchp tpm i5k_amb tpm_bios pci_hotplug rng_core processor button dcdbas sd_mod crc_t10dif sg sr_mod cdrom ide_pci_generic piix ide_core ata_generic mptsas ata_piix mptscsih libata mptbase scsi_transport_sas ehci_hcd uhci_hcd scsi_mod bnx2 thermal thermal_sys [last unloaded: scsi_wait_scan] Sep 28 23:04:20 server kernel: [ 7633.305414] Sep 28 23:04:20 server kernel: [ 7633.305414] Pid: 6097, comm: kslowd003 Tainted: G D 2.6.35.5 #1 0DT097/PowerEdge 1950 Sep 28 23:04:20 server kernel: [ 7633.305414] RIP: 0010:[<ffffffff81204d85>] [<ffffffff81204d85>] cachefiles_walk_to_object+0x575/0x8e4 Sep 28 23:04:20 server kernel: [ 7633.305414] RSP: 0018:ffff8800ca30fcb0 EFLAGS: 00010282 Sep 28 23:04:20 server kernel: [ 7633.305414] RAX: 000000000000000f RBX: 00000001000b2d55 RCX: 0000000000000005 Sep 28 23:04:20 server kernel: [ 7633.305414] RDX: 000000000000000e RSI: ffff88004da53800 RDI: 0000003000000008 Sep 28 23:04:20 server kernel: [ 7633.305414] RBP: ffff8800ca30fd80 R08: 00000000003a7aff R09: 0000000000000002 Sep 28 23:04:20 server kernel: [ 7633.305414] R10: 000000000014a000 R11: ffff8800ca30f990 R12: ffff880037b81c00 Sep 28 23:04:20 server kernel: [ 7633.305414] R13: ffff88009ab73c00 R14: ffff880037b81d20 R15: ffff8800666ca6c0 Sep 28 23:04:20 server kernel: [ 7633.305414] FS: 0000000000000000(0000) GS:ffff880001c80000(0000) knlGS:0000000000000000 Sep 28 23:04:20 server kernel: [ 7633.305414] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Sep 28 23:04:20 server kernel: [ 7633.305414] CR2: ffffffffff600400 CR3: 0000000001856000 CR4: 00000000000006f0 Sep 28 23:04:20 server kernel: [ 7633.305414] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 28 23:04:20 server kernel: [ 7633.305414] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Sep 28 23:04:20 server kernel: [ 7633.305414] Process kslowd003 (pid: 6097, threadinfo ffff8800ca30e000, task ffff8800ca232440) Sep 28 23:04:20 server kernel: [ 7633.305414] Stack: Sep 28 23:04:20 server kernel: [ 7633.305414] 0000000000000100 ffff8800ca30fd38 ffff8800ca232440 ffff88004da53800 Sep 28 23:04:20 server kernel: [ 7633.305414] <0> ffff880065c257c4 ffff8801043e7e00 ffff8800b5400900 0000004100000001 Sep 28 23:04:20 server kernel: [ 7633.305414] <0> 0000000000000000 ffff8801043e7f10 ffff88009ab73c80 0000000000000000 Sep 28 23:04:20 server kernel: [ 7633.305414] Call Trace: Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff812035a1>] cachefiles_lookup_object+0x77/0xd5 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff8114b13f>] fscache_lookup_object+0x142/0x18e Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff8114b794>] fscache_object_slow_work_execute+0x232/0x853 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff810ac50a>] slow_work_execute+0x194/0x2af Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff8105b8db>] ? finish_wait+0x5d/0x65 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff810ac7af>] slow_work_thread+0x18a/0x2a8 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff8105b794>] ? autoremove_wake_function+0x0/0x38 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff810ac625>] ? slow_work_thread+0x0/0x2a8 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff8105b2ee>] kthread+0x7d/0x85 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff81003914>] kernel_thread_helper+0x4/0x10 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff8140b930>] ? restore_args+0x0/0x30 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff8105b271>] ? kthread+0x0/0x85 Sep 28 23:04:20 server kernel: [ 7633.305414] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10 Sep 28 23:04:20 server kernel: [ 7633.305414] Code: 24 05 77 2b 48 c7 c7 ee 93 58 81 31 c0 e8 68 3d 20 00 48 c7 c7 d1 9b 59 81 31 c0 e8 5a 3d 20 00 4c 89 e6 4c 89 ef e8 29 f2 ff ff <0f> 0b eb fe f0 41 ff 84 24 10 01 00 00 71 0b f0 41 ff 8c 24 10 Sep 28 23:04:20 server kernel: [ 7633.305414] RIP [<ffffffff81204d85>] cachefiles_walk_to_object+0x575/0x8e4 Sep 28 23:04:20 server kernel: [ 7633.305414] RSP <ffff8800ca30fcb0> Sep 28 23:04:20 server kernel: [ 7635.100156] ---[ end trace 4404c9c8f276dd3c ]--- Sep 28 23:05:16 server kernel: [ 7691.213124] BUG: soft lockup - CPU#5 stuck for 61s! [kslowd000:308] Sep 28 23:05:17 server kernel: [ 7691.213126] Modules linked in: dummy xt_mac ipt_addrtype reiserfs xfs power_meter loop joydev fan i5000_edac psmouse pcspkr evdev edac_core serio_raw tpm_tis shpchp tpm i5k_amb tpm_bios pci_hotplug rng_core processor button dcdbas sd_mod crc_t10dif sg sr_mod cdrom ide_pci_generic piix ide_core ata_generic mptsas ata_piix mptscsih libata mptbase scsi_transport_sas ehci_hcd uhci_hcd scsi_mod bnx2 thermal thermal_sys [last unloaded: scsi_wait_scan] Sep 28 23:05:17 server kernel: [ 7691.213126] CPU 5 Sep 28 23:05:17 server kernel: [ 7691.213126] Modules linked in: dummy xt_mac ipt_addrtype reiserfs xfs power_meter loop joydev fan i5000_edac psmouse pcspkr evdev edac_core serio_raw tpm_tis shpchp tpm i5k_amb tpm_bios pci_hotplug rng_core processor button dcdbas sd_mod crc_t10dif sg sr_mod cdrom ide_pci_generic piix ide_core ata_generic mptsas ata_piix mptscsih libata mptbase scsi_transport_sas ehci_hcd uhci_hcd scsi_mod bnx2 thermal thermal_sys [last unloaded: scsi_wait_scan] Sep 28 23:05:17 server kernel: [ 7691.213126] Sep 28 23:05:17 server kernel: [ 7691.213126] Pid: 308, comm: kslowd000 Tainted: G D 2.6.35.5 #1 0DT097/PowerEdge 1950 Sep 28 23:05:17 server kernel: [ 7691.213126] RIP: 0010:[<ffffffff8125044f>] [<ffffffff8125044f>] __write_lock_failed+0xf/0x20 Sep 28 23:05:17 server kernel: [ 7691.213126] RSP: 0018:ffff88012f20dc98 EFLAGS: 00000287 Sep 28 23:05:17 server kernel: [ 7691.213126] RAX: ffff88012f20dd38 RBX: ffff88012f20dca0 RCX: ffff8800c3163c00 Sep 28 23:05:17 server kernel: [ 7691.213126] RDX: ffff88012f3be3c0 RSI: ffff88012f20dc20 RDI: ffff8801043e7f18 Sep 28 23:05:17 server kernel: [ 7691.213126] RBP: ffffffff810034ce R08: 0000000000000000 R09: ffff88008df6f003 Sep 28 23:05:17 server kernel: [ 7691.213126] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000010 Sep 28 23:05:17 server kernel: [ 7691.213126] R13: 0000000000011140 R14: ffff88012f20c000 R15: 0000000000000000 Sep 28 23:05:17 server kernel: [ 7691.213126] FS: 0000000000000000(0000) GS:ffff880001d40000(0000) knlGS:0000000000000000 Sep 28 23:05:17 server kernel: [ 7691.213126] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Sep 28 23:05:17 server kernel: [ 7691.213126] CR2: ffffffffff600400 CR3: 0000000001859000 CR4: 00000000000006f0 Sep 28 23:05:17 server kernel: [ 7691.213126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 28 23:05:17 server kernel: [ 7691.213126] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Sep 28 23:05:17 server kernel: [ 7691.213126] Process kslowd000 (pid: 308, threadinfo ffff88012f20c000, task ffff88012f3be3c0) Sep 28 23:05:17 server kernel: [ 7691.213126] Stack: Sep 28 23:05:17 server kernel: [ 7691.213126] ffffffff8140b447 ffff88012f20dd80 ffffffff81204c76 0000000000000000 Sep 28 23:05:17 server kernel: [ 7691.213126] <0> Sep 28 23:05:19 server kernel: [ 7691.213126] ffff88012f20dd38 ffff88012f3be3c0 ffff8800c3163c00 ffff880045ade844 Sep 28 23:05:19 server kernel: [ 7691.213126] <0> ffff8801043e7e00 ffff88007e4f4b40 0000004100000000 0000000000000000 Sep 28 23:05:19 server kernel: [ 7691.213126] Call Trace: Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8140b447>] ? _raw_write_lock+0x16/0x18 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff81204c76>] ? cachefiles_walk_to_object+0x466/0x8e4 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff812035a1>] ? cachefiles_lookup_object+0x77/0xd5 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8114b13f>] ? fscache_lookup_object+0x142/0x18e Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8114b794>] ? fscache_object_slow_work_execute+0x232/0x853 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff810ac50a>] ? slow_work_execute+0x194/0x2af Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8105b8db>] ? finish_wait+0x5d/0x65 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff810ac7af>] ? slow_work_thread+0x18a/0x2a8 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8105b794>] ? autoremove_wake_function+0x0/0x38 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff810ac625>] ? slow_work_thread+0x0/0x2a8 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8105b2ee>] ? kthread+0x7d/0x85 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff81003914>] ? kernel_thread_helper+0x4/0x10 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8140b930>] ? restore_args+0x0/0x30 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff8105b271>] ? kthread+0x0/0x85 Sep 28 23:05:19 server kernel: [ 7691.213126] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10 Sep 28 23:05:19 server kernel: [ 7691.213126] Code: 48 83 eb 07 48 39 d9 73 06 48 89 01 31 c0 c3 b8 f2 ff ff ff c3 90 90 90 90 90 Sep 28 23:05:23 server kernel: [ 7691.213126] 90 90 f0 81 07 00 00 00 01 f3 90 81 3f 00 00 00 01 <75> f6 f0 81 2f 00 00 00 01 0f 85 e2 ff ff ff c3 90 f0 ff 07 f3 Sep 28 23:05:23 server kernel: [ 7691.213126] Call Trace: Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8140b447>] ? _raw_write_lock+0x16/0x18 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff81204c76>] ? cachefiles_walk_to_object+0x466/0x8e4 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff812035a1>] ? cachefiles_lookup_object+0x77/0xd5 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8114b13f>] ? fscache_lookup_object+0x142/0x18e Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8114b794>] ? fscache_object_slow_work_execute+0x232/0x853 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff810ac50a>] ? slow_work_execute+0x194/0x2af Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8105b8db>] ? finish_wait+0x5d/0x65 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff810ac7af>] ? slow_work_thread+0x18a/0x2a8 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8105b794>] ? autoremove_wake_function+0x0/0x38 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff810ac625>] ? slow_work_thread+0x0/0x2a8 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8105b2ee>] ? kthread+0x7d/0x85 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff81003914>] ? kernel_thread_helper+0x4/0x10 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8140b930>] ? restore_args+0x0/0x30 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff8105b271>] ? kthread+0x0/0x85 Sep 28 23:05:23 server kernel: [ 7691.213126] [<ffffffff81003910>] ? kernel_thread_helper+0x0/0x10 -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
