Hi everybody !
After we installed a fresh RedHat 8.0 on a 2 processor machine the NFS
daemon hangs from time to time - really badly, since I cannot kill it
with -9. The problem occurs every couples of days.
I cannot even reboot, because the reboot process will hang trying to
kill the NFS daemon. The problem is that after I try to kill nfsd, the
exported partitions are not accessible, even locally - every access just
hangs. Also, umount will report that the partition is busy. Just to make
it clear:
- the nfsd hangs (I cannot access the exported partition from any client)
- the partition is still accessible locally
- try (unsuccessfully) to kill nfsd
- the partition is not accessible anymore
There is no processor activity when it hangs – both processors are idle.
Also looks like there is no disk activity.
Now, the partitions are some big (1TB) RAID disks. The RAID system is a
separate box, accessible through a SCSI interface. So the computer will
see just one big disk. Actually there are two of them, on different
LUNs: 0 and 1. It worked fine before the upgrade, but because of a old
kernel only LUN0 was accessible.
Here are the details :
processor: two Pentium III (Coppermine) at 800MHz, 256KB cache
memory: 2GB
kernel version: 2.4.18-19.8.0smp (upgraded with up2date)
I think there is no need to say that any suggestions to solve this
problem are extremely welcome :-)
Cheers,
iulian
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