On 29 Oct 2007, at 06:18, Mike Galbraith wrote:

quoted text
> hrmph, CC to members only list removed.

What makes you think it is members only?!?  NTFS-dev is not members  
only at all.  It is moderated which is a very different thing.  Most  
list members have to be approved for posting, too...  And the only  
reason it is moderated is spam filtering.  We delete 99.9% of emails  
going to the list by hand as moderators because they are all spam.   
That means the list and the list archives only contain NTFS related  
messages and not thousands of posts trying to sell you pills and what  
not...

Best regards,

	Anton

quoted text
> On Mon, 2007-10-29 at 07:08 +0100, Mike Galbraith wrote:
>> Greetings,
>>
>> 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]  =======================

-- 
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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