Hi,
On 29 Oct 2007, at 06:08, Mike Galbraith wrote:
I've stumbled across a 2.6.22->2.6.23 regression. First md5sum access
of an empty NTFS file leads to kernel I/O error gripe, a second access
leaves md5sum hung. 2.6.22.10 has no trouble accessing this file.
Looking at the 22->23 diff, I don't see a quick and dirty stab
candidate, and since I'm preparing for a 5 week separation from my box
<twitch>, I doubt I'll have time to do a bisect. /me punts.
root@Homer: md5sum '/windows/C/Dokumente und Einstellungen/All Users/
Anwendungsdaten/Microsoft/Network/Connections/Pbk/rasphone.pbk'
md5sum: /windows/C/Dokumente und Einstellungen/All Users/
Anwendungsdaten/Microsoft/Network/Connections/Pbk/rasphone.pbk:
Input/output error
[ 228.551859] NTFS-fs error (device hda1):
ntfs_read_compressed_block(): ntfs_map_runlist() failed. Cannot read
compression block.
[ 401.721890] md5sum D eee53d64 0 7249 7019
[ 401.727155] eee53d78 00200082 00000002 eee53d64 eee53d5c
00000000 e9b006b0 e9b00700
[ 401.735469] 5f6b3463 c0677060 c067a080 e9b00860 c180d080
00000000 c180d080 c180d108
[ 401.743991] 00000001 00200086 e9b006e0 00200086 f79ca640
eee53d94 0000b4d3 00200202
[ 401.752514] Call Trace:
[ 401.755155] [<c04b57bf>] io_schedule+0x1e/0x28
[ 401.759711] [<c015a269>] sync_page+0x34/0x3f
[ 401.764102] [<c04b5b78>] __wait_on_bit_lock+0x40/0x63
[ 401.769281] [<c015a221>] __lock_page+0x54/0x5c
[ 401.773845] [<c015a826>] do_generic_mapping_read+0x236/0x4e7
[ 401.779629] [<c015c165>] generic_file_aio_read+0xff/0x198
[ 401.785138] [<c017851c>] do_sync_read+0xd0/0x106
[ 401.789873] [<c0178cff>] vfs_read+0x89/0x11d
[ 401.794266] [<c0179164>] sys_read+0x3d/0x64
[ 401.798569] [<c01041ba>] syscall_call+0x7/0xb
[ 401.803039] =======================
Could you post the complete dmesg output, please?
Nothing related has changed in the NTFS driver between 2.6.22.10 and
2.6.23 so I expect something else to be at fault here.
Could you post your .config as well, please?
Best regards,
Anton
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer, http://www.linux-ntfs.org/
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