Hello Alan,
Thank you for taking your time to inform all involved people. I have made first
a test on plain 2.6.7 kernel without any patch to make sure I can reproduce it
again.
Simultaneously:
# dd if=random.bin of=/dev/sda bs=1M seek=140000
240+0 records in
240+0 records out
251658240 bytes transferred in 142.382673 seconds (1767478 bytes/sec)
# mke2fs /dev/sda2
mke2fs 1.35 (28-Feb-2004)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
7946240 inodes, 15870211 blocks
793510 blocks (5.00%) reserved for the super user
First data block=0
485 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424
Writing inode tables: done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 32 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
Please note that both seemed to complete succesfully, although the USB disk
controller has really hung.
End of log (I will send complete to you in a separate mail):
Jun 22 12:01:45 motyl kernel: usb-storage: Command TEST_UNIT_READY (6 bytes)
Jun 22 12:01:45 motyl kernel: usb-storage: 00 00 00 00 00 00
Jun 22 12:01:45 motyl kernel: usb-storage: Bulk Command S 0x43425355 T 0x49f6 L
0 F 0 Trg 0 LUN 0 CL 6
Jun 22 12:01:45 motyl kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 31
bytes
Jun 22 12:01:46 motyl kernel: 0:0): rejecting I/O to device being removed
Jun 22 12:01:46 motyl kernel: scsi0 (0:0): rejecting I/O to device being
removed
Jun 22 12:01:48 motyl last message repeated 7292 times
Jun 22 12:01:48 motyl kernel: usb-storage: -- sending exit command to thread
Jun 22 12:01:48 motyl kernel: usb-storage: *** thread awakened.
Jun 22 12:01:48 motyl kernel: usb-storage: -- exit command received
Jun 22 12:01:48 motyl kernel: usb-storage: -- usb_stor_release_resources
finished
Jun 22 12:01:49 motyl kernel: scsi0 (0:0): rejecting I/O to dead device
Jun 22 12:01:49 motyl last message repeated 730 times
Jun 22 12:01:49 motyl kernel: slab error in kmem_cache_destroy(): cache
`scsi_cmd_cache': Can't free all objects
Jun 22 12:01:49 motyl kernel: [dump_stack+30/48]
Jun 22 12:01:49 motyl kernel: [kmem_cache_destroy+136/256]
Jun 22 12:01:49 motyl kernel: [scsi_destroy_command_freelist+90/144]
Jun 22 12:01:49 motyl kernel: [scsi_host_dev_release+50/144]
Jun 22 12:01:49 motyl kernel: [device_release+93/112]
Jun 22 12:01:49 motyl kernel: [kobject_cleanup+149/160]
Jun 22 12:01:49 motyl kernel: [scsi_disk_put+48/80]
Jun 22 12:01:49 motyl kernel: [sd_release+58/112]
Jun 22 12:01:49 motyl kernel: [blkdev_put+379/416]
Jun 22 12:01:49 motyl kernel: [__fput+285/304]
Jun 22 12:01:49 motyl kernel: [filp_close+87/144]
Jun 22 12:01:49 motyl kernel: [sys_close+97/160]
Jun 22 12:01:49 motyl kernel: [syscall_call+7/11]
Jun 22 12:01:49 motyl kernel:
Jun 22 12:07:52 motyl kernel: Slab corruption: start=df7a9af4, len=1024
Jun 22 12:07:52 motyl kernel: Redzone: 0x5a2cf071/0x5a2cf071.
Jun 22 12:07:52 motyl kernel: Last user: [put_files_struct+146/224]
Jun 22 12:07:52 motyl kernel: 100: 6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b
6b
Jun 22 12:07:52 motyl kernel: Prev obj: start=df7a96e8, len=1024
Jun 22 12:07:52 motyl kernel: Redzone: 0x170fc2a5/0x170fc2a5.
Jun 22 12:07:52 motyl kernel: Last user: [alloc_fd_array+36/64]
Jun 22 12:07:52 motyl kernel: 000: 78 94 5d de 50 d0 2b d3 50 d0 2b d3 90 5e 62
c2
Jun 22 12:07:52 motyl kernel: 010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
Best regards,
--
Tomasz Motylewski
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