Messages in this thread | | | Date | Sat, 28 Apr 2007 15:07:02 +0200 | From | Rogier Wolff <> | Subject | nbd hangs in 2.6.21 |
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Hi,
I've been doing some work with nbd-servers, but it seems they are a bit unreliable right now. It seems to be the kernel side that is locking up.
Doing things like
dd if=/dev/zero of=filesys bs=1k count=1 seek=1024000 nbd-server 1234 `pwd`/filesys
and then
nbd-client othersystem 1234 /dev/nd0 mke2fs /dev/nd0 mount /dev/nd0 /mnt cp -r /usr/src/linux/ /mnt/test1 cp -r /usr/src/linux/ /mnt/test2 sync
will usually do the trick: The sync will hang in disk-wait and never come out of it.
In my case "othersystem" is running 2.6.20. I don't think it is causing the problems: the nbd-server is simply waiting for the next request. I also tried a different codebase: nbdsvr. Same thing.
Anybody else see this?
Roger.
-- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2600998 ** *-- BitWizard writes Linux device drivers for any device you may have! --* Q: It doesn't work. A: Look buddy, doesn't work is an ambiguous statement. Does it sit on the couch all day? Is it unemployed? Please be specific! Define 'it' and what it isn't doing. --------- Adapted from lxrbot FAQ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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