From: Olivier Bonvalet <btrfs.list@daevel.fr>
To: linux-btrfs@vger.kernel.org
Subject: Re: Can't umount a read-only FS ?
Date: Wed, 15 Aug 2012 22:23:04 +0200 [thread overview]
Message-ID: <502C0528.9090407@daevel.fr> (raw)
In-Reply-To: <20120815174356.GG17430@twin.jikos.cz>
Ok, thanks. So I will wait for the 3.5.3 kernel (since 3.5.2 don't seem to have any btrfs fix).
On 15/08/2012 19:43, David Sterba wrote:
> Hi,
>
> On Wed, Aug 15, 2012 at 07:32:45PM +0200, Olivier Bonvalet wrote:
>> On 15/08/2012 19:28, Olivier Bonvalet wrote:
>>> I have a strange problem with a btrfs partition : after an error, btrfs was forced readonly.
>>
>> I forgot, it was set readonly after that error :
>>
>> Aug 15 09:44:33 sofia kernel: [29840.510826] ------------[ cut here ]------------
>> Aug 15 09:44:33 sofia kernel: [29840.510850] WARNING: at fs/btrfs/super.c:219 __btrfs_abort_transaction+0x3a/0x95 [btrfs]()
>> Aug 15 09:44:33 sofia kernel: [29840.510858] btrfs: Transaction aborted
>> Aug 15 09:44:33 sofia kernel: [29840.510860] Modules linked in: ipv6 btrfs zram(C) nf_conntrack
>> Aug 15 09:44:33 sofia kernel: [29840.510872] Pid: 26524, comm: btrfs Tainted: G C 2.6.44.7-dae-xen #2
>> Aug 15 09:44:33 sofia kernel: [29840.510879] Call Trace:
>> Aug 15 09:44:33 sofia kernel: [29840.510893] [<ffffffff8103c7cf>] ? warn_slowpath_common+0x76/0x8a
>> Aug 15 09:44:33 sofia kernel: [29840.510901] [<ffffffff8103c87b>] ? warn_slowpath_fmt+0x45/0x4a
>> Aug 15 09:44:33 sofia kernel: [29840.510924] [<ffffffffa0077346>] ? btrfs_alloc_delayed_item+0x13/0x3b [btrfs]
>> Aug 15 09:44:33 sofia kernel: [29840.510941] [<ffffffffa00203d2>] ? __btrfs_abort_transaction+0x3a/0x95 [btrfs]
>> Aug 15 09:44:33 sofia kernel: [29840.510964] [<ffffffffa0042c80>] ? btrfs_unlink_subvol+0x1cf/0x255 [btrfs]
>
> my stack pattern recognition leads to this patch:
>
> http://article.gmane.org/gmane.comp.file-systems.btrfs/19105
> [PATCH] Btrfs: fix enospc problems when deleting a subvol
>
> part of 3.6-rc and will probably end up in a stable updates of some 3.x.y
> branches
>
>
>> Aug 15 09:44:33 sofia kernel: [29840.510987] [<ffffffffa0062178>] ? btrfs_ioctl_snap_destroy+0x2e0/0x42c [btrfs]
>> Aug 15 09:44:33 sofia kernel: [29840.511010] [<ffffffffa0064f8c>] ? btrfs_ioctl+0x4f6/0xfce [btrfs]
>> Aug 15 09:44:33 sofia kernel: [29840.511022] [<ffffffff81021ffa>] ? do_page_fault+0x274/0x2f2
>> Aug 15 09:44:33 sofia kernel: [29840.511031] [<ffffffff810d39ca>] ? vfs_ioctl+0x1e/0x31
>> Aug 15 09:44:33 sofia kernel: [29840.511039] [<ffffffff810d41ba>] ? do_vfs_ioctl+0x3bd/0x3ff
>> Aug 15 09:44:33 sofia kernel: [29840.511046] [<ffffffff810d4238>] ? sys_ioctl+0x3c/0x60
>> Aug 15 09:44:33 sofia kernel: [29840.511055] [<ffffffff81304979>] ? system_call_fastpath+0x16/0x1b
>> Aug 15 09:44:33 sofia kernel: [29840.511062] ---[ end trace 17eb064ed1556a08 ]---
>> Aug 15 09:44:33 sofia kernel: [29840.511071] BTRFS error (device dm-1) in btrfs_unlink_subvol:3098: error 28
>> Aug 15 09:44:33 sofia kernel: [29840.511077] btrfs is forced readonly
>> Aug 15 09:44:33 sofia kernel: [29840.511083] BTRFS error (device dm-1) in btrfs_ioctl_snap_destroy:2026: error 28
>>
>>
>> then in logs I have this warnings :
>
> I haven't looked closer, but they're probably implied by the filesystem
> going read-only.
>
>> Aug 15 09:51:42 sofia kernel: [30269.723855] ------------[ cut here ]------------
>> Aug 15 09:51:42 sofia kernel: [30269.723893] WARNING: at fs/btrfs/inode.c:6954 btrfs_destroy_inode+0x64/0x26c [btrfs]()
>> Aug 15 09:51:42 sofia kernel: [30269.723905] Modules linked in: ipv6 btrfs zram(C) nf_conntrack
>> Aug 15 09:51:42 sofia kernel: [30269.723920] Pid: 27751, comm: ssh Tainted: G WC 2.6.44.7-dae-xen #2
>> Aug 15 09:51:42 sofia kernel: [30269.723928] Call Trace:
>> Aug 15 09:51:42 sofia kernel: [30269.723939] [<ffffffff8103c7cf>] ? warn_slowpath_common+0x76/0x8a
>> Aug 15 09:51:42 sofia kernel: [30269.723975] [<ffffffffa004678f>] ? btrfs_destroy_inode+0x64/0x26c [btrfs]
>> Aug 15 09:51:42 sofia kernel: [30269.724010] [<ffffffffa004672b>] ? btrfs_alloc_inode+0x1d9/0x1d9 [btrfs]
>> Aug 15 09:51:42 sofia kernel: [30269.724052] [<ffffffff810d9943>] ? dispose_list+0x27/0x31
>> Aug 15 09:51:42 sofia kernel: [30269.724066] [<ffffffff810da65e>] ? prune_icache_sb+0x2a7/0x2c2
>> Aug 15 09:51:42 sofia kernel: [30269.724086] [<ffffffff810c99e1>] ? prune_super+0xcb/0x138
>> Aug 15 09:51:42 sofia kernel: [30269.724104] [<ffffffff8110276f>] ? do_raw_spin_unlock.constprop.9+0xc/0xf
>> Aug 15 09:51:42 sofia kernel: [30269.724124] [<ffffffff8109b7d4>] ? shrink_slab+0x120/0x19d
>> Aug 15 09:51:42 sofia kernel: [30269.724139] [<ffffffff8109d46f>] ? do_try_to_free_pages+0x251/0x3ba
>> Aug 15 09:51:42 sofia kernel: [30269.724156] [<ffffffff8109d648>] ? try_to_free_pages+0x70/0x75
>> Aug 15 09:51:42 sofia kernel: [30269.724172] [<ffffffff81097368>] ? __alloc_pages_nodemask+0x4bf/0x773
>> Aug 15 09:51:42 sofia kernel: [30269.724191] [<ffffffff812fff66>] ? kmalloc_large_node+0x4f/0x7f
>> Aug 15 09:51:42 sofia kernel: [30269.724204] [<ffffffff8126a4e1>] ? __alloc_skb+0x6b/0x135
>> Aug 15 09:51:42 sofia kernel: [30269.724218] [<ffffffff81269103>] ? sock_alloc_send_pskb+0xc7/0x2b5
>> Aug 15 09:51:42 sofia kernel: [30269.724234] [<ffffffff81005e67>] ? get_phys_to_machine+0x12/0x5d
>> Aug 15 09:51:42 sofia kernel: [30269.724251] [<ffffffff81003b2a>] ? mfn_to_pfn.part.24+0x52/0x77
>> Aug 15 09:51:42 sofia kernel: [30269.724271] [<ffffffff812db414>] ? unix_stream_sendmsg+0x113/0x2b8
>> Aug 15 09:51:42 sofia kernel: [30269.724289] [<ffffffff8109557b>] ? get_pageblock_flags_group+0x30/0x64
>> Aug 15 09:51:42 sofia kernel: [30269.724302] [<ffffffff81263de0>] ? sock_aio_write+0xa3/0xbf
>> Aug 15 09:51:42 sofia kernel: [30269.724316] [<ffffffff81099e12>] ? release_pages+0x120/0x12f
>> Aug 15 09:51:42 sofia kernel: [30269.724335] [<ffffffff810c6ec2>] ? do_sync_write+0xae/0xe6
>> Aug 15 09:51:42 sofia kernel: [30269.724347] [<ffffffff810bf739>] ? kmem_cache_free+0x11/0x69
>> Aug 15 09:51:42 sofia kernel: [30269.724361] [<ffffffff810aaed7>] ? remove_vma+0x5c/0x63
>> Aug 15 09:51:42 sofia kernel: [30269.724371] [<ffffffff810ac047>] ? do_munmap+0x2a7/0x2cf
>> Aug 15 09:51:42 sofia kernel: [30269.724385] [<ffffffff810c7634>] ? vfs_write+0x9d/0xf8
>> Aug 15 09:51:42 sofia kernel: [30269.724396] [<ffffffff810c782f>] ? sys_write+0x3e/0x6d
>> Aug 15 09:51:42 sofia kernel: [30269.724409] [<ffffffff81304979>] ? system_call_fastpath+0x16/0x1b
>> Aug 15 09:51:42 sofia kernel: [30269.724421] ---[ end trace 17eb064ed1556a09 ]---
>> Aug 15 09:51:42 sofia kernel: [30269.724428] ------------[ cut here ]------------
>> Aug 15 09:51:42 sofia kernel: [30269.724456] WARNING: at fs/btrfs/inode.c:6955 btrfs_destroy_inode+0x7b/0x26c [btrfs]()
>> Aug 15 09:51:42 sofia kernel: [30269.724470] Modules linked in: ipv6 btrfs zram(C) nf_conntrack
>> Aug 15 09:51:42 sofia kernel: [30269.724487] Pid: 27751, comm: ssh Tainted: G WC 2.6.44.7-dae-xen #2
>> Aug 15 09:51:42 sofia kernel: [30269.724499] Call Trace:
>> Aug 15 09:51:42 sofia kernel: [30269.724508] [<ffffffff8103c7cf>] ? warn_slowpath_common+0x76/0x8a
>> Aug 15 09:51:42 sofia kernel: [30269.724536] [<ffffffffa00467a6>] ? btrfs_destroy_inode+0x7b/0x26c [btrfs]
>> Aug 15 09:51:42 sofia kernel: [30269.724569] [<ffffffffa004672b>] ? btrfs_alloc_inode+0x1d9/0x1d9 [btrfs]
>> Aug 15 09:51:42 sofia kernel: [30269.724582] [<ffffffff810d9943>] ? dispose_list+0x27/0x31
>> Aug 15 09:51:42 sofia kernel: [30269.724591] [<ffffffff810da65e>] ? prune_icache_sb+0x2a7/0x2c2
>> Aug 15 09:51:42 sofia kernel: [30269.724602] [<ffffffff810c99e1>] ? prune_super+0xcb/0x138
>> Aug 15 09:51:42 sofia kernel: [30269.724611] [<ffffffff8110276f>] ? do_raw_spin_unlock.constprop.9+0xc/0xf
>> Aug 15 09:51:42 sofia kernel: [30269.724622] [<ffffffff8109b7d4>] ? shrink_slab+0x120/0x19d
>> Aug 15 09:51:42 sofia kernel: [30269.724632] [<ffffffff8109d46f>] ? do_try_to_free_pages+0x251/0x3ba
>> Aug 15 09:51:42 sofia kernel: [30269.724643] [<ffffffff8109d648>] ? try_to_free_pages+0x70/0x75
>> Aug 15 09:51:42 sofia kernel: [30269.724663] [<ffffffff81097368>] ? __alloc_pages_nodemask+0x4bf/0x773
>> Aug 15 09:51:42 sofia kernel: [30269.724734] [<ffffffff812fff66>] ? kmalloc_large_node+0x4f/0x7f
>> Aug 15 09:51:42 sofia kernel: [30269.724747] [<ffffffff8126a4e1>] ? __alloc_skb+0x6b/0x135
>> Aug 15 09:51:42 sofia kernel: [30269.724758] [<ffffffff81269103>] ? sock_alloc_send_pskb+0xc7/0x2b5
>> Aug 15 09:51:42 sofia kernel: [30269.724775] [<ffffffff81005e67>] ? get_phys_to_machine+0x12/0x5d
>> Aug 15 09:51:42 sofia kernel: [30269.724786] [<ffffffff81003b2a>] ? mfn_to_pfn.part.24+0x52/0x77
>> Aug 15 09:51:42 sofia kernel: [30269.724797] [<ffffffff812db414>] ? unix_stream_sendmsg+0x113/0x2b8
>> Aug 15 09:51:42 sofia kernel: [30269.724805] [<ffffffff8109557b>] ? get_pageblock_flags_group+0x30/0x64
>> Aug 15 09:51:42 sofia kernel: [30269.724813] [<ffffffff81263de0>] ? sock_aio_write+0xa3/0xbf
>> Aug 15 09:51:42 sofia kernel: [30269.724819] [<ffffffff81099e12>] ? release_pages+0x120/0x12f
>> Aug 15 09:51:42 sofia kernel: [30269.724827] [<ffffffff810c6ec2>] ? do_sync_write+0xae/0xe6
>> Aug 15 09:51:42 sofia kernel: [30269.724834] [<ffffffff810bf739>] ? kmem_cache_free+0x11/0x69
>> Aug 15 09:51:42 sofia kernel: [30269.724840] [<ffffffff810aaed7>] ? remove_vma+0x5c/0x63
>> Aug 15 09:51:42 sofia kernel: [30269.724846] [<ffffffff810ac047>] ? do_munmap+0x2a7/0x2cf
>> Aug 15 09:51:42 sofia kernel: [30269.724852] [<ffffffff810c7634>] ? vfs_write+0x9d/0xf8
>> Aug 15 09:51:42 sofia kernel: [30269.724859] [<ffffffff810c782f>] ? sys_write+0x3e/0x6d
>> Aug 15 09:51:42 sofia kernel: [30269.724865] [<ffffffff81304979>] ? system_call_fastpath+0x16/0x1b
>> Aug 15 09:51:42 sofia kernel: [30269.724871] ---[ end trace 17eb064ed1556a0a ]---
>> Aug 15 09:51:42 sofia kernel: [30269.724876] ------------[ cut here ]------------
>> Aug 15 09:51:42 sofia kernel: [30269.724896] WARNING: at fs/btrfs/inode.c:6957 btrfs_destroy_inode+0xab/0x26c [btrfs]()
>> Aug 15 09:51:42 sofia kernel: [30269.724903] Modules linked in: ipv6 btrfs zram(C) nf_conntrack
>> Aug 15 09:51:42 sofia kernel: [30269.724914] Pid: 27751, comm: ssh Tainted: G WC 2.6.44.7-dae-xen #2
>> Aug 15 09:51:42 sofia kernel: [30269.724920] Call Trace:
>> Aug 15 09:51:42 sofia kernel: [30269.724925] [<ffffffff8103c7cf>] ? warn_slowpath_common+0x76/0x8a
>> Aug 15 09:51:42 sofia kernel: [30269.724946] [<ffffffffa00467d6>] ? btrfs_destroy_inode+0xab/0x26c [btrfs]
>> Aug 15 09:51:42 sofia kernel: [30269.724966] [<ffffffffa004672b>] ? btrfs_alloc_inode+0x1d9/0x1d9 [btrfs]
>> Aug 15 09:51:42 sofia kernel: [30269.724974] [<ffffffff810d9943>] ? dispose_list+0x27/0x31
>> Aug 15 09:51:42 sofia kernel: [30269.724980] [<ffffffff810da65e>] ? prune_icache_sb+0x2a7/0x2c2
>> Aug 15 09:51:42 sofia kernel: [30269.724987] [<ffffffff810c99e1>] ? prune_super+0xcb/0x138
>> Aug 15 09:51:42 sofia kernel: [30269.724993] [<ffffffff8110276f>] ? do_raw_spin_unlock.constprop.9+0xc/0xf
>> Aug 15 09:51:42 sofia kernel: [30269.725001] [<ffffffff8109b7d4>] ? shrink_slab+0x120/0x19d
>> Aug 15 09:51:42 sofia kernel: [30269.725008] [<ffffffff8109d46f>] ? do_try_to_free_pages+0x251/0x3ba
>> Aug 15 09:51:42 sofia kernel: [30269.725015] [<ffffffff8109d648>] ? try_to_free_pages+0x70/0x75
>> Aug 15 09:51:42 sofia kernel: [30269.725023] [<ffffffff81097368>] ? __alloc_pages_nodemask+0x4bf/0x773
>> Aug 15 09:51:42 sofia kernel: [30269.725030] [<ffffffff812fff66>] ? kmalloc_large_node+0x4f/0x7f
>> Aug 15 09:51:42 sofia kernel: [30269.925127] [<ffffffff8126a4e1>] ? __alloc_skb+0x6b/0x135
>> Aug 15 09:51:42 sofia kernel: [30269.925150] [<ffffffff81269103>] ? sock_alloc_send_pskb+0xc7/0x2b5
>> Aug 15 09:51:42 sofia kernel: [30269.925171] [<ffffffff81005e67>] ? get_phys_to_machine+0x12/0x5d
>> Aug 15 09:51:42 sofia kernel: [30269.925190] [<ffffffff81003b2a>] ? mfn_to_pfn.part.24+0x52/0x77
>> Aug 15 09:51:42 sofia kernel: [30269.925208] [<ffffffff812db414>] ? unix_stream_sendmsg+0x113/0x2b8
>> Aug 15 09:51:42 sofia kernel: [30269.925226] [<ffffffff8109557b>] ? get_pageblock_flags_group+0x30/0x64
>> Aug 15 09:51:42 sofia kernel: [30269.925241] [<ffffffff81263de0>] ? sock_aio_write+0xa3/0xbf
>> Aug 15 09:51:42 sofia kernel: [30269.925259] [<ffffffff81099e12>] ? release_pages+0x120/0x12f
>> Aug 15 09:51:42 sofia kernel: [30269.925276] [<ffffffff810c6ec2>] ? do_sync_write+0xae/0xe6
>> Aug 15 09:51:42 sofia kernel: [30269.925292] [<ffffffff810bf739>] ? kmem_cache_free+0x11/0x69
>> Aug 15 09:51:42 sofia kernel: [30269.925309] [<ffffffff810aaed7>] ? remove_vma+0x5c/0x63
>> Aug 15 09:51:42 sofia kernel: [30269.925323] [<ffffffff810ac047>] ? do_munmap+0x2a7/0x2cf
>> Aug 15 09:51:42 sofia kernel: [30269.925339] [<ffffffff810c7634>] ? vfs_write+0x9d/0xf8
>> Aug 15 09:51:42 sofia kernel: [30269.925356] [<ffffffff810c782f>] ? sys_write+0x3e/0x6d
>> Aug 15 09:51:42 sofia kernel: [30269.925373] [<ffffffff81304979>] ? system_call_fastpath+0x16/0x1b
>> Aug 15 09:51:42 sofia kernel: [30269.925386] ---[ end trace 17eb064ed1556a0b ]---
>>
>>
>> But nothing about the umount (some hours later).
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
next prev parent reply other threads:[~2012-08-15 20:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-15 17:28 Can't umount a read-only FS ? Olivier Bonvalet
2012-08-15 17:32 ` Olivier Bonvalet
2012-08-15 17:43 ` David Sterba
2012-08-15 20:23 ` Olivier Bonvalet [this message]
2012-08-15 22:29 ` [solved] " Olivier Bonvalet
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=502C0528.9090407@daevel.fr \
--to=btrfs.list@daevel.fr \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.