From: "Theodore Ts'o" <tytso@mit.edu>
To: Tahsin Erdogan <tahsin@google.com>
Cc: Andreas Dilger <adilger@dilger.ca>,
"Darrick J . Wong" <darrick.wong@oracle.com>,
Jan Kara <jack@suse.cz>,
linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 05/32] ext4: attach jinode after creation of xattr inode
Date: Wed, 21 Jun 2017 21:26:09 -0400 [thread overview]
Message-ID: <20170622012608.gzvj37gfsjupukph@thunk.org> (raw)
In-Reply-To: <20170621212142.16581-5-tahsin@google.com>
On Wed, Jun 21, 2017 at 02:21:15PM -0700, Tahsin Erdogan wrote:
> In data=ordered mode jinode needs to be attached to the xattr inode when
> writing data to it. Attachment normally occurs during file open for regular
> files. Since we are not using file interface to write to the xattr inode,
> the jinode attach needs to be done manually.
>
> Otherwise the following crash occurs in data=ordered mode.
>
> BUG: unable to handle kernel NULL pointer dereference at (null)
> IP: jbd2_journal_file_inode+0x37/0x110
> PGD 13b3c0067
> P4D 13b3c0067
> PUD 137660067
> PMD 0
>
> Oops: 0000 [#1] SMP
> CPU: 3 PID: 1877 Comm: python Not tainted 4.12.0-rc1+ #749
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
> task: ffff88010e368980 task.stack: ffffc90000374000
> RIP: 0010:jbd2_journal_file_inode+0x37/0x110
> RSP: 0018:ffffc90000377980 EFLAGS: 00010246
> RAX: 0000000000000000 RBX: ffff880123b06230 RCX: 0000000000280000
> RDX: 0000000000000006 RSI: 0000000000000000 RDI: ffff88012c8585d0
> RBP: ffffc900003779b0 R08: 0000000000000202 R09: 0000000000000001
> R10: 0000000000000000 R11: 0000000000000400 R12: ffff8801111f81c0
> R13: ffff88013b2b6800 R14: ffffc90000377ab0 R15: 0000000000000001
> FS: 00007f0c99b77740(0000) GS:ffff88013fd80000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000000 CR3: 0000000136d91000 CR4: 00000000000006e0
> Call Trace:
> jbd2_journal_inode_add_write+0xe/0x10
> ext4_map_blocks+0x59e/0x620
> ext4_xattr_set_entry+0x501/0x7d0
> ext4_xattr_block_set+0x1b2/0x9b0
> ext4_xattr_set_handle+0x322/0x4f0
> ext4_xattr_set+0x144/0x1a0
> ext4_xattr_user_set+0x34/0x40
> __vfs_setxattr+0x66/0x80
> __vfs_setxattr_noperm+0x69/0x1c0
> vfs_setxattr+0xa2/0xb0
> setxattr+0x12e/0x150
> path_setxattr+0x87/0xb0
> SyS_setxattr+0xf/0x20
> entry_SYSCALL_64_fastpath+0x18/0xad
>
> Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Thanks, applied.
- Ted
next prev parent reply other threads:[~2017-06-22 1:26 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-21 21:21 [PATCH 01/32] ext4: xattr-in-inode support Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 02/32] ext4: fix lockdep warning about recursive inode locking Tahsin Erdogan
2017-06-22 1:18 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 03/32] ext4: lock inode before calling ext4_orphan_add() Tahsin Erdogan
2017-06-22 1:20 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 04/32] ext4: do not set posix acls on xattr inodes Tahsin Erdogan
2017-06-22 1:23 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 05/32] ext4: attach jinode after creation of xattr inode Tahsin Erdogan
2017-06-22 1:26 ` Theodore Ts'o [this message]
2017-06-21 21:21 ` [PATCH 06/32] ext4: ea_inode owner should be the same as the inode owner Tahsin Erdogan
2017-06-22 1:28 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 07/32] ext4: call journal revoke when freeing ea_inode blocks Tahsin Erdogan
2017-06-22 1:38 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 08/32] ext4: fix ref counting for ea_inode Tahsin Erdogan
2017-06-22 1:40 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 09/32] ext4: extended attribute value size limit is enforced by vfs Tahsin Erdogan
2017-06-22 1:42 ` Theodore Ts'o
2017-06-22 18:02 ` Darrick J. Wong
2017-06-22 19:40 ` Andreas Dilger
2017-06-22 22:27 ` Theodore Ts'o
2017-06-22 23:21 ` Darrick J. Wong
2017-06-21 21:21 ` [PATCH 10/32] ext4: change ext4_xattr_inode_iget() signature Tahsin Erdogan
2017-06-22 1:55 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 11/32] ext4: clean up ext4_xattr_inode_get() Tahsin Erdogan
2017-06-22 1:58 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 12/32] ext4: add missing le32_to_cpu(e_value_inum) conversions Tahsin Erdogan
2017-06-22 2:00 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 13/32] ext4: ext4_xattr_value_same() should return false for external data Tahsin Erdogan
2017-06-22 2:04 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 14/32] ext4: fix ext4_xattr_make_inode_space() value size calculation Tahsin Erdogan
2017-06-22 2:09 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 15/32] ext4: fix ext4_xattr_move_to_block() Tahsin Erdogan
2017-06-22 2:13 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 16/32] ext4: fix ext4_xattr_cmp() Tahsin Erdogan
2017-06-22 2:15 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 17/32] ext4: fix credits calculation for xattr inode Tahsin Erdogan
2017-06-22 2:19 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 18/32] ext4: retry storing value in external inode with xattr block too Tahsin Erdogan
2017-06-22 2:22 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 19/32] ext4: ext4_xattr_delete_inode() should return accurate errors Tahsin Erdogan
2017-06-22 2:27 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 20/32] ext4: improve journal credit handling in set xattr paths Tahsin Erdogan
2017-06-22 2:30 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 21/32] ext4: modify ext4_xattr_ino_array to hold struct inode * Tahsin Erdogan
2017-06-22 14:28 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 22/32] ext4: move struct ext4_xattr_inode_array to xattr.h Tahsin Erdogan
2017-06-22 14:29 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 23/32] mbcache: make mbcache naming more generic Tahsin Erdogan
2017-06-22 14:37 ` Theodore Ts'o
2017-06-21 21:21 ` [PATCH 24/32] ext2, ext4: make mb block cache names more explicit Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 25/32] ext4: add ext4_is_quota_file() Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 26/32] ext4: cleanup transaction restarts during inode deletion Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 27/32] ext4: xattr inode deduplication Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 28/32] quota: add get_inode_usage callback to transfer multi-inode charges Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 29/32] ext4: reserve space for xattr entries/names Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 30/32] ext4: eliminate xattr entry e_hash recalculation for removes Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 31/32] ext4: strong binding of xattr inode references Tahsin Erdogan
2017-06-21 21:21 ` [PATCH 32/32] ext4: add nombcache mount option Tahsin Erdogan
2017-06-22 1:16 ` [PATCH 01/32] ext4: xattr-in-inode support Theodore Ts'o
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