Messages in this thread | | | Date | Wed, 03 Apr 1996 02:04:54 -0600 (CST) | From | scott snyder <> | Subject | NFS cache corruption with 1.3.82 after sigint |
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hi -
I've found what seems to be a reliable way to corrupt the buffer cache for NFS filesystems in recent kernels. (Verified in 1.3.81 and 1.3.82; i think it was present in 1.3.76 as well.)
I start up a large binary from the NFS filesystem for the first time. Before the program starts up, i interrupt it with control-C. From then on, trying to run the binary again gives a segmentation fault. (After a reboot, the binary runs fine as long as i don't interrupt it the first time.)
After going through this procedure, i tried copying the binary to a local disk, rebooting, and then comparing the copy with the original. They were, in fact, different.
I won't have a chance to look into this more deeply for at least a few days, but maybe this hint will help someone else experiencing the same problem...
sss snyder@fnald0.fnal.gov
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