[PVFS2-developers] Re: smallio server death with old kernel

Pete Wyckoff pw at osc.edu
Wed Jan 4 13:02:56 EST 2006


pw at osc.edu wrote on Fri, 23 Dec 2005 17:29 -0500:
> Just a heads up:  I can make this server error happen consistently
> with today's pvfs2 cvs:
> 
> [E 16:19:23.007018] ../pvfs2/src/proto/PINT-le-bytefield.c line 572: lebf_decode_req: improper input buffer size
> [E 16:19:23.007244]     [bt] pvfs2-server [0x808b60a]
> [E 16:19:23.007258]     [bt] pvfs2-server(PINT_decode+0x230)
> [0x8089b98]
> [E 16:19:23.007271]     [bt] pvfs2-server(vfprintf+0x23c8)
> [0x805d7a8]
> [E 16:19:23.007283]     [bt] pvfs2-server(main+0x3b5) [0x805be95]
> [E 16:19:23.007295]     [bt]
> /lib/i686/libc.so.6(__libc_start_main+0xaa) [0x400a5bba]
> [E 16:19:23.007307]     [bt] pvfs2-server(shmat+0x41) [0x805b971]
[..]
> The two server logs I get with debugmask verbose are attached if
> they help.  Walking up from a breakpoint on that error line 572
> shows that we're in a smallio req:
> 
>     (gdb) p req->op
>     $8 = PVFS_SERV_SMALL_IO

Did anybody get a chance to look at this?  I worry that it is a side
effect of the new SMALL_IO protocol addition.  Any way I can disable
that and see if the problem still occurs?

		-- Pete


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