Messages in this thread | | | Date | Tue, 4 Nov 2003 07:52:11 -0800 | From | "Randy.Dunlap" <> | Subject | Re: All filesystems hang under long periods of heavy load (read and write) on a filesystem |
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On Mon, 03 Nov 2003 15:46:22 -0800 Shirley Shi <shirley@kasenna.com> wrote:
| Can anyone know why all filesystems hang under periods of heavy load on | one of the filesystem? Once the filesystems hang, any command related to | the filesystem, like 'ls', 'cat',etc., will stick forever until re-power | cycling the machine. | | I kept running the following script to read and write the data on a same | filesystem(ext2 or XFS) since we need do some tests for the storage. Is | half day, onn the beginning, the system was running well. But after | running the script for a long time, such a half day, one day or two | days, all filesystems would get hung, including the root filesystem | although I didn't do any heavy load on it. The file(M.1) I used for | reading and writing is about 2.5GB. | | | @ total = 115 | while (1) | @ cc = 2 | while ($cc <= $total) | dd bs=512k if=/data/M.1 of=/data/M.$cc | echo "copying $cc of $total..." | @ cc = $cc + 1 | end | rm -f /data/M.* | end | | | I tried RH8.0 with kernel 2.4.18 and kernel 2.4.21 with XFS and patch | rmap15j. I have the same issue running with the two kernels. Basically I | have two filesytems configured. One for the root configured with ext3, | and another is for the data configured with ext2 or XFS. With either | ext2 or XFS, I have the same problem.
Can you try a recent kernel, like 2.4.23-pre8 or -pre9?
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