Hi,
While working with fsfuzz encountered the following kernel stack traces.
Environment: 2.6.31-rc9
Architecture: s390
------------[ cut here ]------------
Badness at fs/ext4/inode.c:1121
Modules linked in: cbc md5 aes_s390 aes_generic ecb ecryptfs ext4 jbd2 crc16
loop autofs4 lockd sunrpc ipv6 qeth_l2 vmur qeth qdio ccwgroup
dm_round_robin
dm_multipath scsi_dh sd_mod scsi_mod multipath dm_snapshot dm_zero dm_mirror
dm_region_hash dm_log dm_mod dasd_fba_mod dasd_eckd_mod dasd_mod ext3 jbd
CPU: 1 Not tainted 2.6.31-rc9 #1
Process mount (pid: 3553, task: 0000000039e5f038, ksp: 000000002ef5f3a0)
Krnl PSW : 0704000180000000 000003e0035d9980 (check_block_validity+0x84/0x9c
[ext4])
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0 EA:3
Krnl GPRS: 000000000001ff1c 000000003ca15000 0000000000000000
0000000000000000
000003e0035d997c 0000000000000000 000000000000006d
0000000000000000
0000000000000000 000000000000f2b2 0000000000000001
000000002dcd70f0
000003e0035d2000 000003e00360dc58 000003e0035d997c
000000002ef5f6b8
Krnl Code: 000003e0035d9970: e320b1080004 lg %r2,264(%r11)
000003e0035d9976: c0e500007ec7 brasl %r14,3e0035e9704
000003e0035d997c: a7f40001 brc 15,3e0035d997e
>000003e0035d9980: a728fffb lhi %r2,-5
000003e0035d9984: b9140022 lgfr %r2,%r2
000003e0035d9988: e340f0f00004 lg %r4,240(%r15)
000003e0035d998e: eb6ff0b00004 lmg %r6,%r15,176(%r15)
000003e0035d9994: 07f4 bcr 15,%r4
Call Trace:
([<000003e0035d997c>] check_block_validity+0x80/0x9c [ext4])
[<000003e0035dbe96>] ext4_get_blocks+0x10e/0x374 [ext4]
[<000003e0035dd964>] ext4_get_block+0xcc/0x114 [ext4]
[<000000000011847a>] generic_block_bmap+0x5a/0x70
[<000003e002d0af80>] jbd2_journal_bmap+0x44/0xa8 [jbd2]
[<000003e002d05114>] jread+0x128/0x27c [jbd2]
[<000003e002d05330>] do_one_pass+0xc8/0x7f8 [jbd2]
[<000003e002d05b3e>] jbd2_journal_recover+0x5a/0x104 [jbd2]
[<000003e002d0b1ae>] jbd2_journal_load+0x76/0x1bc [jbd2]
[<000003e0035f4272>] ext4_fill_super+0x1db6/0x2908 [ext4]
[<00000000000f470e>] get_sb_bdev+0x13e/0x19c
[<000003e0035e830e>] ext4_get_sb+0x2e/0x40 [ext4]
[<00000000000f3fb4>] vfs_kern_mount+0xc0/0x168
[<00000000000f40c8>] do_kern_mount+0x58/0x114
[<000000000010e5c8>] do_mount+0x798/0x830
[<000000000010e710>] SyS_mount+0xb0/0x100
[<00000000000266fe>] sysc_noemu+0x10/0x16
[<0000004e53f234e2>] 0x4e53f234e2
Last Breaking-Event-Address:
[<000003e0035d997c>] check_block_validity+0x80/0x9c [ext4]
Same bug with different call trace:
------------[ cut here ]------------
Badness at fs/ext4/inode.c:1121
Modules linked in: md5 cbc aes_s390 aes_generic ecb ecryptfs ext4 jbd2 crc16
loop autofs4 lockd sunrpc ipv6 qeth_l2 vmur qeth qdio ccwgroup
dm_round_robin
dm_multipath scsi
_dh sd_mod scsi_mod multipath dm_snapshot dm_zero dm_mirror dm_region_hash
dm_log dm_mod dasd_fba_mod dasd_eckd_mod dasd_mod ext3 jbd
CPU: 0 Tainted: G W 2.6.31-rc9 #1
Process fstest (pid: 4219, task: 000000003e8ac038, ksp: 000000003dca2f28)
Krnl PSW : 0704000180000000 000003e0035f0980 (check_block_validity+0x84/0x9c
[ext4])
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0 EA:3
Krnl GPRS: 0000000000007acd 000000003efe2400 0000000000000000
0000000000000000
000003e0035f097c 0000000000000000 000000000000002c
0000000000000000
0000000000000000 0000000000fb051c 0000000000000001
000000003167e478
000003e0035e9000 000003e003624c58 000003e0035f097c
000000003dca3240
Krnl Code: 000003e0035f0970: e320b1080004 lg %r2,264(%r11)
000003e0035f0976: c0e500007ec7 brasl %r14,3e003600704
000003e0035f097c: a7f40001 brc 15,3e0035f097e
>000003e0035f0980: a728fffb lhi %r2,-5
000003e0035f0984: b9140022 lgfr %r2,%r2
000003e0035f0988: e340f0f00004 lg %r4,240(%r15)
000003e0035f098e: eb6ff0b00004 lmg %r6,%r15,176(%r15)
000003e0035f0994: 07f4 bcr 15,%r4
Call Trace:
([<000003e0035f097c>] check_block_validity+0x80/0x9c [ext4])
[<000003e0035f2e96>] ext4_get_blocks+0x10e/0x374 [ext4]
[<000003e0035f4964>] ext4_get_block+0xcc/0x114 [ext4]
[<0000000000124452>] do_mpage_readpage+0x1fa/0x688
[<0000000000124a12>] mpage_readpages+0xae/0x100
[<00000000000bede8>] __do_page_cache_readahead+0x160/0x1f4
[<00000000000beebc>] ra_submit+0x40/0x54
[<00000000000bf384>] page_cache_sync_readahead+0x40/0x50
[<00000000000b6b68>] generic_file_aio_read+0x284/0x6a4
[<00000000000f13cc>] do_sync_read+0xd0/0x118
[<00000000000f2178>] vfs_read+0xa8/0x174
[<000003e003ab2310>] ecryptfs_read_lower+0xb4/0x138 [ecryptfs]
[<000003e003ab3f62>] ecryptfs_decrypt_page+0x136/0x460 [ecryptfs]
[<000003e003ab1a6e>] ecryptfs_readpage+0xce/0x1c8 [ecryptfs]
[<00000000000bee42>] __do_page_cache_readahead+0x1ba/0x1f4
[<00000000000beebc>] ra_submit+0x40/0x54
[<00000000000bf384>] page_cache_sync_readahead+0x40/0x50
[<00000000000b6b68>] generic_file_aio_read+0x284/0x6a4
[<000003e003aae3cc>] ecryptfs_read_update_atime+0x2c/0x78 [ecryptfs]
[<00000000000f13cc>] do_sync_read+0xd0/0x118
[<00000000000f2178>] vfs_read+0xa8/0x174
[<00000000000f233a>] SyS_read+0x56/0x84
[<00000000000266fe>] sysc_noemu+0x10/0x16
[<0000004e53f12cc4>] 0x4e53f12cc4
Last Breaking-Event-Address:
[<000003e0035f097c>] check_block_validity+0x80/0x9c [ext4]
EXT4-fs error (device loop0): check_block_validity: inode #21 logical
block 44
mapped to 16450844 (size 1)
*P.S. If you need any information please let me know. Please cc me as I
am not subscribed to the list.
Thanks and Regards
R.Nageswara Sastry
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