Attachment 872404 Details for Bug 1074023 – systemtap script for debugging readdir returning -EIO

systemtap script for debugging readdir returning -EIO

bug-1074023.stp (text/plain), 1.86 KB, created by Niels de Vos on 2014-03-09 12:38:30 UTC

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Creator: Niels de Vos

Created: 2014-03-09 12:38:30 UTC

Size: 1.86 KB

patch

obsolete

>#!/usr/bin/stap
>#
># Debugging Bug 1074023: https://bugzilla.redhat.com/1074023
>#     list dir with more than N files results in Input/output error
>#
># Environment:
># - 32-bit glusterfs server
># - 64-bit glusterfs client, running 2.6.32-358.el6.x86_64
>#
># Reproducing:
># 1. install a Fedora 20 i386 Gluster server (hostname vm130-12)
># 2. create and start a volume with one brick
># 3. install a RHEL-6 x86_64 Gluster client (hostname vm130-11)
># 4. mount the volume on the client over NFS
>#    # mount -t nfs vm130-12:/bug-1074023 /mnt/nfs
># 5. populate the volume with some files
>#    # for I in {0..50} ; do touch /mnt/nfs/$(uuidgen) ; done
># 6. mount the volume over glusterfs
>#    # mount -t glusterfs vm130-12:/bug-1074023 /mnt/glusterfs
># 7. check for the contents over the glusterfs mountpoint
>#    # ls /mnt/glusterfs
>#    ls: reading directory /mnt/glusterfs: Input/output error
>#
># Input/output error = EIO    = 5
># Invalid argument   = EINVAL = 22
>#
># Date: Saturday 8 March 2014
># Author: Niels de Vos <ndevos@redhat.com>
>#
>
>probe module("fuse").function("*").return {
>	if (@defined($return) && ($return == 5 || $return == -5)) {
>		printf("%s returns %d, stack follows:\n", probefunc(), $return);
>		print_backtrace();
>	}
>}
>
>probe module("fuse").function("fuse_dev_write").return {
>	if ($return <= 0)
>		printf("fuse_dev_write returns %d\n", $return);
>}
>
>probe module("fuse").statement("fuse_readdir@fs/fuse/dir.c:1231") {
>	printf("fuse_readdir:1231: err=%d\n", $err);
>}
>
>probe process("/usr/lib64/glusterfs/3.4.0.59rhs/xlator/mount/fuse.so").function("send_fuse_data") {
>	printf("send_fuse_data: size = %ld\n", $size);
>}
>
>probe process("/usr/lib64/glusterfs/3.4.0.59rhs/xlator/mount/fuse.so").function("send_fuse_data").return {
>	printf("send_fuse_data returns %d\n", $return);
>}
>
>probe begin {
>	printf("Starting probe, press CTRL+C to exit...\n");
>}
>
>probe end {
>	printf("...exiting!\n");
>}

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Attachments on bug 1074023: 872404 | 872408 | 878702