[Pvfs2-users] 2.6.3, file hole issues?

[Anthony Tong]

Hi Sam,

One of my original concerns is that there was an error/unknown condition
encountered but 1) the calling application never knew about it, and 2)
no indication of any trouble in any logs--which resulted in silent data
corruption.

-at

On Sun, Oct 07, 2007 at 07:06:02PM -0500, Sam Lang wrote:
>
> Hi Anthony,
>
> It sounds like you've discovered a bug in the threaded version of the 
> client.  We'll take a look at that and figure it out, but if possible, just 
> use the non-threaded version for now.
>
> Thanks,
> -sam
>
> On Oct 6, 2007, at 4:45 PM, Anthony Tong wrote:
>
>> On Sat, Oct 06, 2007 at 11:21:58AM -0500, Anthony Tong wrote:
>>> To clarify what you said & what I see in the logs: before each 
>>> problematic
>>> IO, it looks like the client daemons are remounting the fs? Maybe
>>> the threaded client core was getting restarted for some reason?
>>
>> After some fiddling, got cores turned on for the threaded client
>> tend and they all tend look like this.
>>
>> #0  0x0075c7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
>> (gdb) where
>> #0  0x0075c7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
>> #1  0x007a17a5 in raise () from /lib/tls/libc.so.6
>> #2  0x007a3209 in abort () from /lib/tls/libc.so.6
>> #3  0x0079ad91 in __assert_fail () from /lib/tls/libc.so.6
>> #4  0x08076773 in io_datafile_complete_operations ()
>> #5  0x0806dcef in PINT_client_state_machine_testsome ()
>> #6  0x08056537 in process_vfs_requests ()
>> #7  0x08058a2a in main ()
>>
>> This is the actual assert
>>
>> pvfs2-client-core: src/client/sysint/sys-io.sm:1860: 
>> io_post_write_ack_recv: Assertion `ret == 0' failed.
>>
>>
>> Also I'm not quite sure why I'm not seeing error messages (that
>> I'd expect) in the client log
>>
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