From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 78721] New: VFS: brelse: Trying to free free buffer
Date: Sun, 22 Jun 2014 21:25:03 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=78721
Bug ID: 78721
Summary: VFS: brelse: Trying to free free buffer
Product: File System
Version: 2.5
Kernel Version: 3.15.1
Hardware: i386
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ext4
Assignee: fs_ext4@kernel-bugs.osdl.org
Reporter: deweloper@wp.pl
Regression: No
Created attachment 140641
--> https://bugzilla.kernel.org/attachment.cgi?id=140641&action=edit
dmesg
[ 5188.946855] ------------[ cut here ]------------
[ 5188.956366] WARNING: CPU: 0 PID: 6949 at fs/buffer.c:1206
__brelse+0x34/0x40()
[ 5188.971168] VFS: brelse: Trying to free free buffer
[ 5188.981113] Modules linked in: af_packet snd_via82xx snd_mpu401_uart
snd_rawmidi snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore eeprom
i2c_viapro vt8231 saa7134_empress via686a hwmon saa6752hs tuner_simple
tuner_types tda9887 tda8290 tuner saa7134 tveeprom videobuf_dma_sg
videobuf_core v4l2_common videodev i2c_core sd_mod uhci_hcd sata_nv pata_amd
pata_via ata_piix libata scsi_mod ext4 crc16 mbcache jbd2 vfat fat via_rhine
forcedeth 8139too 3c59x mii 3c509 nvram rtc_cmos usbkbd usbcore usb_common unix
pcspkr
[ 5189.076610] CPU: 0 PID: 6949 Comm: record Not tainted 3.15.1 #6
[ 5189.088652] c0314842 c0126df6 c0385d24 c22afbcc 00001b25 c0384b22 000004b6
c01b3ca4
[ 5189.104729] c01b3ca4 c22afc14 c1b028f8 00000003 c22afc38 c0126ea3 00000009
c22afbb4
[ 5189.120931] c0385d24 c22afbcc c01b3ca4 c0384b22 000004b6 c0385d24 c49f2c6c
00000001
[ 5189.137091] Call Trace:
[ 5189.142177] [] ? dump_stack+0xa/0x13
[ 5189.151503] [] ? warn_slowpath_common+0x76/0x90
[ 5189.162740] [] ? __brelse+0x34/0x40
[ 5189.171894] [] ? __brelse+0x34/0x40
[ 5189.181165] [] ? warn_slowpath_fmt+0x33/0x40
[ 5189.192079] [] ? __brelse+0x34/0x40
[ 5189.201536] [] ? ext4_ind_map_blocks+0x31c/0x5b0 [ext4]
[ 5189.214409] [] ? ext4_map_blocks+0x2a4/0x560 [ext4]
[ 5189.226614] [] ? _ext4_get_block+0x76/0x180 [ext4]
[ 5189.238418] [] ? alloc_page_buffers+0x4b/0x90
[ 5189.249321] [] ? __block_write_begin+0x160/0x380
[ 5189.260918] [] ? ext4_write_begin+0x17f/0x3e0 [ext4]
[ 5189.273283] [] ? ext4_get_block_write+0x10/0x10 [ext4]
[ 5189.285943] [] ? ext4_write_end+0x200/0x350 [ext4]
[ 5189.297750] [] ? generic_perform_write+0xbe/0x1c0
[ 5189.309382] [] ? __generic_file_aio_write+0x1ed/0x470
[ 5189.321704] [] ? generic_file_aio_write+0x4a/0x100
[ 5189.333631] [] ? ext4_file_write+0xc2/0x4f0 [ext4]
[ 5189.345479] [] ? __videobuf_copy_to_user.isra.2+0x3d/0x50
[videobuf_core]
[ 5189.361315] [] ? videobuf_read_stream+0x25f/0x2b0 [videobuf_core]
[ 5189.375728] [] ? do_sync_write+0x5b/0x90
[ 5189.385772] [] ? do_sync_readv_writev+0x90/0x90
[ 5189.397018] [] ? vfs_write+0x97/0x190
[ 5189.406529] [] ? SyS_write+0x4c/0xb0
[ 5189.415810] [] ? syscall_call+0x7/0xb
[ 5189.425310] ---[ end trace 9de2bd6272909976 ]---
[ 5189.464211] ------------[ cut here ]------------
uname -a:
Linux video 3.15.1 #6 Sun Jun 22 13:12:40 CEST 2014 i586 GNU/Linux
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