Re: [NFS] I/O Errors with hard mounts

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>
> Getting straces of the apps failing might be helpful, particularly if
> it's always in the same syscalls. I have a hunch though that you'll find
> yourself in the twisty maze of RPC code. In that case, knowing the
> particular syscalls might not be that informative.
>
> Looking at network captures might also be helpful. If you can correlate
> the straces with what's going over the wire, then you might be able to
> determine whether this error is being generated as a result of a NFS
> error from the server or something else entirely.
>

One hint is that if I run ls, and hit control-C while it's trolling
through filer directories
(but not local dirs), I get an I/O Error on the command line.  This
may not reproduce our rm
problems (since those don't have Control-C events), but here's the
last part of the strace:

open("src/modules", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
getdents64(3, 0x534808, 32768)          = -1 EIO (Input/output error)
--- SIGINT (Interrupt) @ 0 (0) ---

We're trying to reproduce the problem with an uninterrupted rm under strace.

Dave

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