Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755396Ab1BNBYZ (ORCPT ); Sun, 13 Feb 2011 20:24:25 -0500 Received: from mail-fx0-f46.google.com ([209.85.161.46]:62674 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755325Ab1BNBYV convert rfc822-to-8bit (ORCPT ); Sun, 13 Feb 2011 20:24:21 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=PRUJ5uZuVZdIRZATDcS+SlRmNUnMyp5BjVLuR103WikZV+Cal4i/y4/P1I1n+ux1k1 0O/1Pb5ku3EDAl0BC6HYBcT+At+zg3Vs6XUQ/KNcWaWr4pv7w7TB/qhfFomx5xYdjSDT wkI/HMPXMekndOCDxrn93flgYPJEL3hBZpBg8= MIME-Version: 1.0 In-Reply-To: References: <20110207032407.GA27404@ca-server1.us.oracle.com> <1ddd01a8-591a-42bc-8bb3-561843b31acb@default> Date: Mon, 14 Feb 2011 01:24:19 +0000 Message-ID: Subject: Re: [PATCH V2 0/3] drivers/staging: zcache: dynamic page cache/swap compression From: Matt To: Dan Magenheimer Cc: gregkh@suse.de, Chris Mason , akpm@linux-foundation.org, torvalds@linux-foundation.org, matthew@wil.cx, linux-kernel@vger.kernel.org, linux-mm@kvack.org, ngupta@vflare.org, jeremy@goop.org, Kurt Hackel , npiggin@kernel.dk, riel@redhat.com, Konrad Wilk , mel@csn.ul.ie, minchan.kim@gmail.com, kosaki.motohiro@jp.fujitsu.com, sfr@canb.auug.org.au, wfg@mail.ustc.edu.cn, tytso@mit.edu, viro@zeniv.linux.org.uk, hughd@google.com, hannes@cmpxchg.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 31049 Lines: 649 On Mon, Feb 14, 2011 at 12:08 AM, Matt wrote: > On Wed, Feb 9, 2011 at 1:03 AM, Dan Magenheimer > wrote: > [snip] >> >> If I've missed anything important, please let me know! >> >> Thanks again! >> Dan >> > > Hi Dan, > > thank you so much for answering my email in such detail ! > > I shall pick up on that mail in my next email sending to the mailing list :) > > > currently I've got a problem with btrfs which seems to get triggered > by cleancache get-operations: > > > Feb 14 00:37:19 lupus kernel: [ 2831.297377] device fsid > 354120c992a00761-5fa07d400126a895 devid 1 transid 7 > /dev/mapper/portage > Feb 14 00:37:19 lupus kernel: [ 2831.297698] btrfs: enabling disk space caching > Feb 14 00:37:19 lupus kernel: [ 2831.297700] btrfs: force lzo compression > Feb 14 00:37:19 lupus kernel: [ 2831.315844] zcache: created ephemeral > tmem pool, id=3 > Feb 14 00:39:20 lupus kernel: [ 2951.853188] BUG: unable to handle > kernel paging request at 0000000001400050 > Feb 14 00:39:20 lupus kernel: [ 2951.853219] IP: [] > btrfs_encode_fh+0x2b/0x120 > Feb 14 00:39:20 lupus kernel: [ 2951.853242] PGD 0 > Feb 14 00:39:20 lupus kernel: [ 2951.853251] Oops: 0000 [#1] PREEMPT SMP > Feb 14 00:39:20 lupus kernel: [ 2951.853275] last sysfs file: > /sys/devices/platform/coretemp.3/temp1_input > Feb 14 00:39:20 lupus kernel: [ 2951.853295] CPU 4 > Feb 14 00:39:20 lupus kernel: [ 2951.853303] Modules linked in: radeon > ttm drm_kms_helper cfbcopyarea cfbimgblt cfbfillrect ipt_REJECT > ipt_LOG xt_limit xt_tcpudp xt_state nf_nat_irc nf_conntrack_irc > nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp > iptable_filter ipt_addrtype xt_DSCP xt_dscp xt_iprange ip_tables > ip6table_filter xt_NFQUEUE xt_owner xt_hashlimit xt_conntrack xt_mark > xt_multiport xt_connmark nf_conntrack xt_string ip6_tables x_tables > it87 hwmon_vid coretemp snd_seq_dummy snd_seq_oss snd_seq_midi_event > snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_hda_codec_hdmi > snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm > snd_timer snd soundcore i2c_i801 wmi e1000e shpchp snd_page_alloc > libphy e1000 scsi_wait_scan sl811_hcd ohci_hcd ssb usb_storage > ehci_hcd [last unloaded: tg3] > Feb 14 00:39:20 lupus kernel: [ 2951.853682] > Feb 14 00:39:20 lupus kernel: [ 2951.853690] Pid: 11394, comm: > btrfs-transacti Not tainted 2.6.37-plus_v16_zcache #4 FMP55/ipower > G3710 > Feb 14 00:39:20 lupus kernel: [ 2951.853725] RIP: > 0010:[] ?[] > btrfs_encode_fh+0x2b/0x120 > Feb 14 00:39:20 lupus kernel: [ 2951.853751] RSP: > 0018:ffff880129a11b00 ?EFLAGS: 00010246 > Feb 14 00:39:20 lupus kernel: [ 2951.853767] RAX: 00000000000000ff > RBX: ffff88014a1ce628 RCX: 0000000000000000 > Feb 14 00:39:20 lupus kernel: [ 2951.853788] RDX: ffff880129a11b3c > RSI: ffff880129a11b70 RDI: 0000000000000006 > Feb 14 00:39:20 lupus kernel: [ 2951.853808] RBP: 0000000001400000 > R08: ffffffff8133eef0 R09: ffff880129a11c68 > Feb 14 00:39:20 lupus kernel: [ 2951.853829] R10: 0000000000000001 > R11: 0000000000000001 R12: ffff88014a1ce780 > Feb 14 00:39:20 lupus kernel: [ 2951.853849] R13: ffff88021fefc000 > R14: ffff88021fef9000 R15: 0000000000000000 > Feb 14 00:39:20 lupus kernel: [ 2951.853870] FS: > 0000000000000000(0000) GS:ffff8800bf500000(0000) > knlGS:0000000000000000 > Feb 14 00:39:20 lupus kernel: [ 2951.853894] CS: ?0010 DS: 0000 ES: > 0000 CR0: 000000008005003b > Feb 14 00:39:20 lupus kernel: [ 2951.853911] CR2: 0000000001400050 > CR3: 0000000001c27000 CR4: 00000000000006e0 > Feb 14 00:39:20 lupus kernel: [ 2951.853932] DR0: 0000000000000000 > DR1: 0000000000000000 DR2: 0000000000000000 > Feb 14 00:39:20 lupus kernel: [ 2951.853952] DR3: 0000000000000000 > DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Feb 14 00:39:20 lupus kernel: [ 2951.853973] Process btrfs-transacti > (pid: 11394, threadinfo ffff880129a10000, task ffff880202e4ac40) > Feb 14 00:39:20 lupus kernel: [ 2951.853999] Stack: > Feb 14 00:39:20 lupus kernel: [ 2951.854006] ?ffff880129a11b50 > ffff880000000003 ffff88003c60a098 0000000000000003 > Feb 14 00:39:20 lupus kernel: [ 2951.854035] ?ffffffffffffffff > ffffffff810e6aaa 0000000000000000 0000000602e4ac40 > Feb 14 00:39:20 lupus kernel: [ 2951.854063] ?ffffffff8133e3f0 > ffffffff810e6cee 0000000000001000 0000000000000000 > Feb 14 00:39:20 lupus kernel: [ 2951.854092] Call Trace: > Feb 14 00:39:20 lupus kernel: [ 2951.854103] ?[] ? > cleancache_get_key+0x4a/0x60 > Feb 14 00:39:20 lupus kernel: [ 2951.854122] ?[] ? > btrfs_wake_function+0x0/0x20 > Feb 14 00:39:20 lupus kernel: [ 2951.854140] ?[] ? > __cleancache_flush_inode+0x3e/0x70 > Feb 14 00:39:20 lupus kernel: [ 2951.854161] ?[] ? > truncate_inode_pages_range+0x42/0x440 > Feb 14 00:39:20 lupus kernel: [ 2951.854182] ?[] ? > btrfs_search_slot+0x89e/0xa00 > Feb 14 00:39:20 lupus kernel: [ 2951.854201] ?[] ? > unmap_mapping_range+0xc5/0x2a0 > Feb 14 00:39:20 lupus kernel: [ 2951.854220] ?[] ? > truncate_pagecache+0x40/0x70 > Feb 14 00:39:20 lupus kernel: [ 2951.854240] ?[] ? > btrfs_truncate_free_space_cache+0x81/0xe0 > Feb 14 00:39:20 lupus kernel: [ 2951.854261] ?[] ? > btrfs_write_dirty_block_groups+0x245/0x500 > Feb 14 00:39:20 lupus kernel: [ 2951.854283] ?[] ? > btrfs_run_delayed_refs+0x1ba/0x220 > Feb 14 00:39:20 lupus kernel: [ 2951.854304] ?[] ? > commit_cowonly_roots+0xff/0x1d0 > Feb 14 00:39:20 lupus kernel: [ 2951.854323] ?[] ? > btrfs_commit_transaction+0x363/0x760 > Feb 14 00:39:20 lupus kernel: [ 2951.854344] ?[] ? > autoremove_wake_function+0x0/0x30 > Feb 14 00:39:20 lupus kernel: [ 2951.854364] ?[] ? > transaction_kthread+0x283/0x2a0 > Feb 14 00:39:20 lupus kernel: [ 2951.854383] ?[] ? > transaction_kthread+0x0/0x2a0 > Feb 14 00:39:20 lupus kernel: [ 2951.854401] ?[] ? > transaction_kthread+0x0/0x2a0 > Feb 14 00:39:20 lupus kernel: [ 2951.854420] ?[] ? > kthread+0x96/0xa0 > Feb 14 00:39:20 lupus kernel: [ 2951.854437] ?[] ? > kernel_thread_helper+0x4/0x10 > Feb 14 00:39:20 lupus kernel: [ 2951.854455] ?[] ? > kthread+0x0/0xa0 > Feb 14 00:39:20 lupus kernel: [ 2951.854471] ?[] ? > kernel_thread_helper+0x0/0x10 > Feb 14 00:39:20 lupus kernel: [ 2951.854488] Code: 55 b8 ff 00 00 00 > 53 48 89 fb 48 83 ec 18 48 8b 6f 10 8b 3a 83 ff 04 0f 86 d5 00 00 00 > 85 c9 0f 95 c1 83 ff 07 0f 86 d5 00 00 00 <48> 8b 45 50 bf 05 00 00 00 > 48 89 06 84 c9 48 8b 85 68 fe ff ff > Feb 14 00:39:20 lupus kernel: [ 2951.854742] RIP ?[] > btrfs_encode_fh+0x2b/0x120 > Feb 14 00:39:20 lupus kernel: [ 2951.854762] ?RSP > Feb 14 00:39:20 lupus kernel: [ 2951.854773] CR2: 0000000001400050 > Feb 14 00:39:20 lupus kernel: [ 2951.860906] ---[ end trace > f831c5ceeaa49287 ]--- > > in my case I had compress-force with lzo and disk_cache enabled > > > another user of the kernel I'm currently running has had the same > problem with zcache > (http://forums.gentoo.org/viewtopic-p-6571799.html#6571799) > > (looks like in his case compression and any other fancy additional > features weren't enabled) > > > changes made by this kernel or patchset to btrfs are from > * io-less dirty throttling patchset (44 patches) > * zcache V2 ("[PATCH] staging: zcache: fix memory leak" should be > applied in both cases) > * PATCH] fix (latent?) memory corruption in btrfs_encode_fh() > * btrfs-unstable changes to state of > 3a90983dbdcb2f4f48c0d771d8e5b4d88f27fae6 (so practically equals btrfs > from 2.6.38-rc4+) > > I haven't tried downgrading to vanilla 2.6.37 with zcache only, yet, > > but kind of upgraded btrfs to the latest state of the btrfs-unstable > repository (http://git.eu.kernel.org/?p=linux/kernel/git/mason/btrfs-unstable.git;a=summary) > namely 3a90983dbdcb2f4f48c0d771d8e5b4d88f27fae6 > > this also didn't help and seemed to produce the same error-message > > so to summarize: > > 1) error message appearing with all 4 patchsets applied changing > btrfs-code and compress-force=lzo and disk_cache enabled > > 2) error message appearing with default mount-options and btrfs from > 2.6.37 and changes for zcache & io-less dirty throttling patchset > applied (first 2 patch(sets)) from list) > > > in my case I tried to extract / play back a 1.7 GiB tarball of my > portage-directory (lots of small files and some tar.bzip2 archives) > via pbzip2 or 7z when the error happened and the message was shown > > Due to KMS sound (webradio streaming) was still running but I couldn't > continue work (X switching to kernel output) so I did the magic sysrq > combo (reisub) > > > Does that BUG message ring a bell for anyone ? > > (if I should leave out anyone from the CC in the next emails or > future, please holler - I don't want to spam your inboxes) > > Thanks > > Matt > OK, here's the output of a kernel - staying as close to vanilla (2.6.37) as the current situation allows (only including some corruption or leak fixes for zram & zcache and "zram_xvmalloc: 64K page fixes and optimizations" (and 2 reiserfs fixes)): so in total the following patches are included in this new kernel (2.6.37-zcache): zram changes: 1 zram: Fix sparse warning 'Using plain integer as NULL pointer' 2 [PATCH] zram: fix data corruption issue 3 [PATCH 0/7][v2] zram_xvmalloc: 64K page fixes and optimizations zcache: 1 zcache-linux-2.6.37-110205 2 [PATCH] staging: zcache: fix memory leak 3 [PATCH] zcache: Fix build error when sysfs is not defined reiserfs: 1 [PATCH] reiserfs: Make sure va_end() is always called after 2 [patch] reiserfs: potential ERR_PTR dereference the same procedure: trying to extract the mentioned portage-tarball: time (7z e -so -tbzip2 -mmt=5 /system/portage_backup_022011.tbz2 | tar -xp -C /usr/gentoo/) this hopefully should make it easier to track down the problem: Feb 14 01:59:59 lupus kernel: [ 364.777143] device fsid 684a4213565dd3fe-ca991821badc2aac devid 1 transid 7 /dev/mapper/portage Feb 14 01:59:59 lupus kernel: [ 364.844994] zcache: created ephemeral tmem pool, id=2 Feb 14 02:02:49 lupus kernel: [ 534.577573] BUG: unable to handle kernel paging request at 0000000037610050 Feb 14 02:02:49 lupus kernel: [ 534.577605] IP: [] btrfs_encode_fh+0x2b/0x110 Feb 14 02:02:49 lupus kernel: [ 534.577630] PGD 0 Feb 14 02:02:49 lupus kernel: [ 534.577640] Oops: 0000 [#1] PREEMPT SMP Feb 14 02:02:49 lupus kernel: [ 534.577665] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Feb 14 02:02:49 lupus kernel: [ 534.577693] CPU 5 Feb 14 02:02:49 lupus kernel: [ 534.577701] Modules linked in: radeon ttm drm_kms_helper cfbcopyarea cfbimgblt cfbfillrect ipt_REJECT ipt_LOG xt_limit xt_tcpudp xt_state nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp iptable_filter ipt_addrtype xt_DSCP xt_dscp xt_iprange ip_tables ip6table_filter xt_NFQUEUE xt_owner xt_hashlimit xt_conntrack xt_mark xt_multiport xt_connmark nf_conntrack xt_string ip6_tables x_tables it87 hwmon_vid coretemp snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd e1000e soundcore i2c_i801 shpchp snd_page_alloc wmi libphy e1000 scsi_wait_scan sl811_hcd ohci_hcd ssb usb_storage ehci_hcd [last unloaded: tg3] Feb 14 02:02:49 lupus kernel: [ 534.578114] Feb 14 02:02:49 lupus kernel: [ 534.578124] Pid: 8285, comm: tar Not tainted 2.6.37-zcache #2 FMP55/ipower G3710 Feb 14 02:02:49 lupus kernel: [ 534.578146] RIP: 0010:[] [] btrfs_encode_fh+0x2b/0x110 Feb 14 02:02:49 lupus kernel: [ 534.578172] RSP: 0018:ffff88023ea9dcc8 EFLAGS: 00010246 Feb 14 02:02:49 lupus kernel: [ 534.578189] RAX: 00000000000000ff RBX: ffff8800b8643228 RCX: 0000000000000000 Feb 14 02:02:49 lupus kernel: [ 534.578210] RDX: ffff88023ea9dd04 RSI: ffff88023ea9dd38 RDI: 0000000000000006 Feb 14 02:02:49 lupus kernel: [ 534.578230] RBP: 0000000037610000 R08: ffffffff81338c90 R09: 0000000000000000 Feb 14 02:02:49 lupus kernel: [ 534.578251] R10: 0000000000000019 R11: 0000000000000001 R12: ffff8800b8643380 Feb 14 02:02:49 lupus kernel: [ 534.578272] R13: ffff8800b8643258 R14: 00007fff806f1f00 R15: 0000000000000000 Feb 14 02:02:49 lupus kernel: [ 534.578293] FS: 00007f823d7ed700(0000) GS:ffff8800bf540000(0000) knlGS:0000000000000000 Feb 14 02:02:49 lupus kernel: [ 534.578317] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Feb 14 02:02:49 lupus kernel: [ 534.578334] CR2: 0000000037610050 CR3: 000000023dcef000 CR4: 00000000000006e0 Feb 14 02:02:49 lupus kernel: [ 534.578356] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Feb 14 02:02:49 lupus kernel: [ 534.578377] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Feb 14 02:02:49 lupus kernel: [ 534.578398] Process tar (pid: 8285, threadinfo ffff88023ea9c000, task ffff88023e8b9d40) Feb 14 02:02:49 lupus kernel: [ 534.578421] Stack: Feb 14 02:02:49 lupus kernel: [ 534.578428] 000000013d096000 ffff88023ed84800 ffff88023ea9c000 0000000000000002 Feb 14 02:02:49 lupus kernel: [ 534.578458] ffffffffffffffff ffffffff810e3b1a 0000000000000001 000000061e1d5240 Feb 14 02:02:49 lupus kernel: [ 534.578486] fffffffffffffffb ffffffff810e3d5e ffff88010f383000 0000001ab86cb908 Feb 14 02:02:49 lupus kernel: [ 534.578514] Call Trace: Feb 14 02:02:49 lupus kernel: [ 534.578525] [] ? cleancache_get_key+0x4a/0x60 Feb 14 02:02:49 lupus kernel: [ 534.578544] [] ? __cleancache_flush_inode+0x3e/0x70 Feb 14 02:02:49 lupus kernel: [ 534.578565] [] ? truncate_inode_pages_range+0x42/0x440 Feb 14 02:02:49 lupus kernel: [ 534.578586] [] ? btrfs_tree_unlock+0x41/0x50 Feb 14 02:02:49 lupus kernel: [ 534.578605] [] ? btrfs_release_path+0x15/0x70 Feb 14 02:02:49 lupus kernel: [ 534.578624] [] ? btrfs_run_delayed_iputs+0x49/0x120 Feb 14 02:02:49 lupus kernel: [ 534.578644] [] ? btrfs_evict_inode+0x27/0x1e0 Feb 14 02:02:49 lupus kernel: [ 534.578663] [] ? evict+0x1a/0xa0 Feb 14 02:02:49 lupus kernel: [ 534.578678] [] ? iput+0x1cd/0x2b0 Feb 14 02:02:49 lupus kernel: [ 534.578694] [] ? do_unlinkat+0x12f/0x1d0 Feb 14 02:02:49 lupus kernel: [ 534.578712] [] ? system_call_fastpath+0x16/0x1b Feb 14 02:02:49 lupus kernel: [ 534.578730] Code: 55 b8 ff 00 00 00 53 48 89 fb 48 83 ec 18 48 8b 6f 10 8b 3a 83 ff 04 0f 86 d5 00 00 00 85 c9 0f 95 c1 83 ff 07 0f 86 d5 00 00 00 <48> 8b 45 50 bf 05 00 00 00 48 89 06 84 c9 48 8b 85 68 fe ff ff Feb 14 02:02:49 lupus kernel: [ 534.578986] RIP [] btrfs_encode_fh+0x2b/0x110 Feb 14 02:02:49 lupus kernel: [ 534.579081] RSP Feb 14 02:02:49 lupus kernel: [ 534.579093] CR2: 0000000037610050 Feb 14 02:02:49 lupus kernel: [ 534.587513] ---[ end trace c596b12e66c0b360 ]--- for reference I've pasted it to pastebin.com: "2.6.37_zcache_V2.patch" http://pastebin.com/cVSkwQ6M after the reboot I had forgotten to not mount the btrfs volume and it threw a similar error-message again and remounted several partitions read-only (including the system partition) the partition with btrfs (/usr/gentoo) couldn't be unmounted since the umount process kind of hang so here's the error message after a reboot (might not be accurate or kind of "skewed" since other patches are included (io-less dirty throttling, PATCH] fix (latent?) memory corruption in btrfs_encode_fh() and latest changes for btrfs)) but might help to get some more evidence: Feb 14 02:05:46 lupus kernel: [ 63.922648] device fsid 684a4213565dd3fe-ca991821badc2aac devid 1 transid 13 /dev/mapper/portage Feb 14 02:05:46 lupus kernel: [ 64.047118] btrfs: unlinked 1 orphans Feb 14 02:05:46 lupus kernel: [ 64.051956] zcache: created ephemeral tmem pool, id=3 Feb 14 02:05:48 lupus kernel: [ 65.801364] hub 2-1:1.0: hub_suspend Feb 14 02:05:48 lupus kernel: [ 65.801376] usb 2-1: unlink qh256-0001/ffff88023fefd180 start 1 [1/0 us] Feb 14 02:05:48 lupus kernel: [ 65.801559] usb 2-1: usb auto-suspend Feb 14 02:05:50 lupus kernel: [ 67.797929] hub 2-0:1.0: hub_suspend Feb 14 02:05:50 lupus kernel: [ 67.797939] usb usb2: bus auto-suspend Feb 14 02:05:50 lupus kernel: [ 67.797942] ehci_hcd 0000:00:1d.0: suspend root hub Feb 14 02:05:52 lupus kernel: [ 70.050493] BUG: unable to handle kernel paging request at 0000030341ed0050 Feb 14 02:05:52 lupus kernel: [ 70.050670] IP: [] btrfs_encode_fh+0x2b/0x120 Feb 14 02:05:52 lupus kernel: [ 70.050807] PGD 0 Feb 14 02:05:52 lupus kernel: [ 70.050929] Oops: 0000 [#1] PREEMPT SMP Feb 14 02:05:52 lupus kernel: [ 70.051223] last sysfs file: /sys/module/pcie_aspm/parameters/policy Feb 14 02:05:52 lupus kernel: [ 70.051365] CPU 6 Feb 14 02:05:52 lupus kernel: [ 70.051411] Modules linked in: ipt_REJECT ipt_LOG xt_limit xt_tcpudp xt_state nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp iptable_filter ipt_addrtype xt_DSCP xt_dscp xt_iprange ip_tables ip6table_filter xt_NFQUEUE xt_owner xt_hashlimit xt_conntrack xt_mark xt_multiport xt_connmark nf_conntrack xt_string ip6_tables x_tables it87 hwmon_vid coretemp snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd i2c_i801 soundcore wmi shpchp e1000e snd_page_alloc libphy e1000 scsi_wait_scan sl811_hcd ohci_hcd ssb usb_storage ehci_hcd [last unloaded: tg3] Feb 14 02:05:52 lupus kernel: [ 70.054694] Feb 14 02:05:52 lupus kernel: [ 70.054776] Pid: 7962, comm: umount Not tainted 2.6.37-plus_v16_zcache #4 FMP55/ipower G3710 Feb 14 02:05:52 lupus kernel: [ 70.054912] RIP: 0010:[] [] btrfs_encode_fh+0x2b/0x120 Feb 14 02:05:52 lupus kernel: [ 70.055084] RSP: 0018:ffff88023c77d6f8 EFLAGS: 00010246 Feb 14 02:05:52 lupus kernel: [ 70.055173] RAX: 00000000000000ff RBX: ffff88023cde0168 RCX: 0000000000000000 Feb 14 02:05:52 lupus kernel: [ 70.055265] RDX: ffff88023c77d734 RSI: ffff88023c77d768 RDI: 0000000000000006 Feb 14 02:05:52 lupus kernel: [ 70.055357] RBP: 0000030341ed0000 R08: ffffffff8133eef0 R09: ffff88023c77d8d8 Feb 14 02:05:52 lupus kernel: [ 70.055448] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff Feb 14 02:05:52 lupus kernel: [ 70.055540] R13: ffff88023cde0030 R14: ffffea0007dd39f0 R15: 0000000000000001 Feb 14 02:05:52 lupus kernel: [ 70.055633] FS: 00007fb1cad04760(0000) GS:ffff8800bf580000(0000) knlGS:0000000000000000 Feb 14 02:05:52 lupus kernel: [ 70.055762] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Feb 14 02:05:52 lupus kernel: [ 70.055851] CR2: 0000030341ed0050 CR3: 000000023c7d5000 CR4: 00000000000006e0 Feb 14 02:05:52 lupus kernel: [ 70.055943] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Feb 14 02:05:52 lupus kernel: [ 70.056035] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Feb 14 02:05:52 lupus kernel: [ 70.056128] Process umount (pid: 7962, threadinfo ffff88023c77c000, task ffff88023c7a4260) Feb 14 02:05:52 lupus kernel: [ 70.056257] Stack: Feb 14 02:05:52 lupus kernel: [ 70.056338] 0000000000000000 0000000000000002 ffff880200000000 0000000000000003 Feb 14 02:05:52 lupus kernel: [ 70.056630] ffffea0007dd39f0 ffffffff810e6aaa ffff880200000041 0000000600000246 Feb 14 02:05:52 lupus kernel: [ 70.056922] ffff88023cdcd300 ffffffff810e6b3a 0000000000000001 ffffffff8132bb7c Feb 14 02:05:52 lupus kernel: [ 70.057213] Call Trace: Feb 14 02:05:52 lupus kernel: [ 70.057301] [] ? cleancache_get_key+0x4a/0x60 Feb 14 02:05:52 lupus kernel: [ 70.057393] [] ? __cleancache_get_page+0x7a/0xd0 Feb 14 02:05:52 lupus kernel: [ 70.057487] [] ? merge_state+0x7c/0x150 Feb 14 02:05:52 lupus kernel: [ 70.057579] [] ? __extent_read_full_page+0x52e/0x710 Feb 14 02:05:52 lupus kernel: [ 70.057673] [] ? rb_insert_color+0xa4/0x140 Feb 14 02:05:52 lupus kernel: [ 70.057766] [] ? tree_insert+0x86/0x1e0 Feb 14 02:05:52 lupus kernel: [ 70.057859] [] ? lock_timer_base.clone.22+0x33/0x70 Feb 14 02:05:52 lupus kernel: [ 70.058004] [] ? btree_get_extent+0x0/0x1c0 Feb 14 02:05:52 lupus kernel: [ 70.058097] [] ? read_extent_buffer_pages+0x2d1/0x470 Feb 14 02:05:52 lupus kernel: [ 70.058191] [] ? btree_get_extent+0x0/0x1c0 Feb 14 02:05:52 lupus kernel: [ 70.058283] [] ? btree_read_extent_buffer_pages.clone.65+0x4d/0xa0 Feb 14 02:05:52 lupus kernel: [ 70.058415] [] ? read_tree_block+0x39/0x60 Feb 14 02:05:52 lupus kernel: [ 70.058508] [] ? read_block_for_search.clone.40+0x116/0x410 Feb 14 02:05:52 lupus kernel: [ 70.058638] [] ? btrfs_cow_block+0x118/0x2b0 Feb 14 02:05:52 lupus kernel: [ 70.058731] [] ? btrfs_search_slot+0x307/0xa00 Feb 14 02:05:52 lupus kernel: [ 70.058823] [] ? lookup_inline_extent_backref+0x98/0x4a0 Feb 14 02:05:52 lupus kernel: [ 70.058919] [] ? kmem_cache_alloc+0x87/0xa0 Feb 14 02:05:52 lupus kernel: [ 70.059032] [] ? __btrfs_free_extent+0xcc/0x6f0 Feb 14 02:05:52 lupus kernel: [ 70.059125] [] ? run_clustered_refs+0x39f/0x880 Feb 14 02:05:52 lupus kernel: [ 70.059220] [] ? pagevec_lookup_tag+0x18/0x20 Feb 14 02:05:52 lupus kernel: [ 70.059312] [] ? filemap_fdatawait_range+0x91/0x180 Feb 14 02:05:52 lupus kernel: [ 70.059405] [] ? btrfs_run_delayed_refs+0xc7/0x220 Feb 14 02:05:52 lupus kernel: [ 70.059498] [] ? btrfs_commit_transaction+0x7c/0x760 Feb 14 02:05:52 lupus kernel: [ 70.059591] [] ? autoremove_wake_function+0x0/0x30 Feb 14 02:05:52 lupus kernel: [ 70.059683] [] ? start_transaction+0x1bf/0x270 Feb 14 02:05:52 lupus kernel: [ 70.059775] [] ? __sync_filesystem+0x5a/0x90 Feb 14 02:05:52 lupus kernel: [ 70.059867] [] ? generic_shutdown_super+0x2d/0x100 Feb 14 02:05:52 lupus kernel: [ 70.059960] [] ? kill_anon_super+0x9/0x50 Feb 14 02:05:52 lupus kernel: [ 70.060051] [] ? deactivate_locked_super+0x26/0x80 Feb 14 02:05:52 lupus kernel: [ 70.060144] [] ? sys_umount+0x7a/0x390 Feb 14 02:05:52 lupus kernel: [ 70.060235] [] ? system_call_fastpath+0x16/0x1b Feb 14 02:05:52 lupus kernel: [ 70.060325] Code: 55 b8 ff 00 00 00 53 48 89 fb 48 83 ec 18 48 8b 6f 10 8b 3a 83 ff 04 0f 86 d5 00 00 00 85 c9 0f 95 c1 83 ff 07 0f 86 d5 00 00 00 <48> 8b 45 50 bf 05 00 00 00 48 89 06 84 c9 48 8b 85 68 fe ff ff Feb 14 02:05:52 lupus kernel: [ 70.063170] RIP [] btrfs_encode_fh+0x2b/0x120 Feb 14 02:05:52 lupus kernel: [ 70.063302] RSP Feb 14 02:05:52 lupus kernel: [ 70.063386] CR2: 0000030341ed0050 Feb 14 02:05:52 lupus kernel: [ 70.063528] ---[ end trace 3313552d105b1535 ]--- Feb 14 02:06:16 lupus kernel: [ 93.961960] BUG: unable to handle kernel paging request at 0000030341ed0050 Feb 14 02:06:16 lupus kernel: [ 93.962171] IP: [] btrfs_encode_fh+0x2b/0x120 Feb 14 02:06:16 lupus kernel: [ 93.962307] PGD 0 Feb 14 02:06:16 lupus kernel: [ 93.962430] Oops: 0000 [#2] PREEMPT SMP Feb 14 02:06:16 lupus kernel: [ 93.962637] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Feb 14 02:06:16 lupus kernel: [ 93.962766] CPU 5 Feb 14 02:06:16 lupus kernel: [ 93.962812] Modules linked in: ipt_REJECT ipt_LOG xt_limit xt_tcpudp xt_state nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp iptable_filter ipt_addrtype xt_DSCP xt_dscp xt_iprange ip_tables ip6table_filter xt_NFQUEUE xt_owner xt_hashlimit xt_conntrack xt_mark xt_multiport xt_connmark nf_conntrack xt_string ip6_tables x_tables it87 hwmon_vid coretemp snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd i2c_i801 soundcore wmi shpchp e1000e snd_page_alloc libphy e1000 scsi_wait_scan sl811_hcd ohci_hcd ssb usb_storage ehci_hcd [last unloaded: tg3] Feb 14 02:06:16 lupus kernel: [ 93.966044] Feb 14 02:06:16 lupus kernel: [ 93.966127] Pid: 7915, comm: btrfs-transacti Tainted: G D 2.6.37-plus_v16_zcache #4 FMP55/ipower G3710 Feb 14 02:06:16 lupus kernel: [ 93.966266] RIP: 0010:[] [] btrfs_encode_fh+0x2b/0x120 Feb 14 02:06:16 lupus kernel: [ 93.966440] RSP: 0018:ffff88023c63b6e0 EFLAGS: 00010246 Feb 14 02:06:16 lupus kernel: [ 93.966528] RAX: 00000000000000ff RBX: ffff88023cde0168 RCX: 0000000000000000 Feb 14 02:06:16 lupus kernel: [ 93.966620] RDX: ffff88023c63b71c RSI: ffff88023c63b750 RDI: 0000000000000006 Feb 14 02:06:16 lupus kernel: [ 93.966713] RBP: 0000030341ed0000 R08: ffffffff8133eef0 R09: ffff88023c63b8c0 Feb 14 02:06:16 lupus kernel: [ 93.966805] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff Feb 14 02:06:16 lupus kernel: [ 93.966897] R13: ffff88023cde0030 R14: ffffea0007d59bc8 R15: 0000000000000001 Feb 14 02:06:16 lupus kernel: [ 93.966990] FS: 0000000000000000(0000) GS:ffff8800bf540000(0000) knlGS:0000000000000000 Feb 14 02:06:16 lupus kernel: [ 93.967120] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Feb 14 02:06:16 lupus kernel: [ 93.967209] CR2: 0000030341ed0050 CR3: 0000000001c27000 CR4: 00000000000006e0 Feb 14 02:06:16 lupus kernel: [ 93.967302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Feb 14 02:06:16 lupus kernel: [ 93.967394] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Feb 14 02:06:16 lupus kernel: [ 93.967500] Process btrfs-transacti (pid: 7915, threadinfo ffff88023c63a000, task ffff88023c7a1620) Feb 14 02:06:16 lupus kernel: [ 93.967630] Stack: Feb 14 02:06:16 lupus kernel: [ 93.967711] 0000000000000000 0000000000000002 0000000000000000 0000000000000003 Feb 14 02:06:16 lupus kernel: [ 93.968057] ffffea0007d59bc8 ffffffff810e6aaa 0000000000000041 0000000600000002 Feb 14 02:06:16 lupus kernel: [ 93.968348] 0000000000000000 ffffffff810e6b3a 0000000000000001 ffffffff00000001 Feb 14 02:06:16 lupus kernel: [ 93.968639] Call Trace: Feb 14 02:06:16 lupus kernel: [ 93.968728] [] ? cleancache_get_key+0x4a/0x60 Feb 14 02:06:16 lupus kernel: [ 93.968820] [] ? __cleancache_get_page+0x7a/0xd0 Feb 14 02:06:16 lupus kernel: [ 93.968914] [] ? __extent_read_full_page+0x52e/0x710 Feb 14 02:06:16 lupus kernel: [ 93.969008] [] ? update_reserved_bytes+0xb3/0x140 Feb 14 02:06:16 lupus kernel: [ 93.969102] [] ? btree_get_extent+0x0/0x1c0 Feb 14 02:06:16 lupus kernel: [ 93.969193] [] ? merge_state+0x7c/0x150 Feb 14 02:06:16 lupus kernel: [ 93.969285] [] ? read_extent_buffer_pages+0x2d1/0x470 Feb 14 02:06:16 lupus kernel: [ 93.969378] [] ? btree_get_extent+0x0/0x1c0 Feb 14 02:06:16 lupus kernel: [ 93.969470] [] ? btree_read_extent_buffer_pages.clone.65+0x4d/0xa0 Feb 14 02:06:16 lupus kernel: [ 93.969602] [] ? read_tree_block+0x39/0x60 Feb 14 02:06:16 lupus kernel: [ 93.969694] [] ? read_block_for_search.clone.40+0x116/0x410 Feb 14 02:06:16 lupus kernel: [ 93.969878] [] ? btrfs_search_slot+0x307/0xa00 Feb 14 02:06:16 lupus kernel: [ 93.969970] [] ? lookup_inline_extent_backref+0x98/0x4a0 Feb 14 02:06:16 lupus kernel: [ 93.970065] [] ? kmem_cache_alloc+0x87/0xa0 Feb 14 02:06:16 lupus kernel: [ 93.970157] [] ? __btrfs_free_extent+0xcc/0x6f0 Feb 14 02:06:16 lupus kernel: [ 93.970249] [] ? update_block_group.clone.62+0xc4/0x280 Feb 14 02:06:16 lupus kernel: [ 93.970343] [] ? run_clustered_refs+0x39f/0x880 Feb 14 02:06:16 lupus kernel: [ 93.970436] [] ? btrfs_run_delayed_refs+0xc7/0x220 Feb 14 02:06:16 lupus kernel: [ 93.970529] [] ? new_slab+0x169/0x1f0 Feb 14 02:06:16 lupus kernel: [ 93.970619] [] ? btrfs_commit_transaction+0x7c/0x760 Feb 14 02:06:16 lupus kernel: [ 93.970713] [] ? autoremove_wake_function+0x0/0x30 Feb 14 02:06:16 lupus kernel: [ 93.970806] [] ? transaction_kthread+0x283/0x2a0 Feb 14 02:06:16 lupus kernel: [ 93.970898] [] ? transaction_kthread+0x0/0x2a0 Feb 14 02:06:16 lupus kernel: [ 93.970990] [] ? transaction_kthread+0x0/0x2a0 Feb 14 02:06:16 lupus kernel: [ 93.971083] [] ? kthread+0x96/0xa0 Feb 14 02:06:16 lupus kernel: [ 93.971174] [] ? kernel_thread_helper+0x4/0x10 Feb 14 02:06:16 lupus kernel: [ 93.971266] [] ? kthread+0x0/0xa0 Feb 14 02:06:16 lupus kernel: [ 93.971355] [] ? kernel_thread_helper+0x0/0x10 Feb 14 02:06:16 lupus kernel: [ 93.971444] Code: 55 b8 ff 00 00 00 53 48 89 fb 48 83 ec 18 48 8b 6f 10 8b 3a 83 ff 04 0f 86 d5 00 00 00 85 c9 0f 95 c1 83 ff 07 0f 86 d5 00 00 00 <48> 8b 45 50 bf 05 00 00 00 48 89 06 84 c9 48 8b 85 68 fe ff ff Feb 14 02:06:16 lupus kernel: [ 93.974280] RIP [] btrfs_encode_fh+0x2b/0x120 Feb 14 02:06:16 lupus kernel: [ 93.974412] RSP Feb 14 02:06:16 lupus kernel: [ 93.974497] CR2: 0000030341ed0050 Feb 14 02:06:16 lupus kernel: [ 93.974599] ---[ end trace 3313552d105b1536 ]--- Feb 14 02:07:04 lupus kernel: [ 141.906124] zcache: destroyed pool id=2 Feb 14 02:07:17 lupus kernel: [ 154.783358] SysRq : Keyboard mode set to system default Feb 14 02:07:18 lupus kernel: [ 155.486147] SysRq : Terminate All Tasks That's all for now Thanks & Regards Matt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/