Re: 2.2.x - running programs from NFS mounted dirs

Eugene Crosser (crosser@average.org)
Tue, 2 Mar 1999 10:29:23 +0300 (MSK)


On 2-Mar-99 at 06:13, Alan Cox (alan@lxorguk.ukuu.org.uk) wrote:

> > apparently, any program started from an NFS
> > mounted directory segfaults immediately. Strace shows only one syscall:
> > mmap(), and then it crashes. The NFS server in my case is another Linux
> > box running unfsd with 2.0.x kernel.

> Check the file permissions on what it is trying to mmap(), especially
> if you've tried 2.0.35 but not 2.0.36

I *guess* that the very first mmap() should be on the executable file
itself, no? This is how it happens:

crosser@ariel:/src/sox-12.15/$ mount
[...]
hekate:/src on /auto/src type nfs (rw,addr=194.67.3.247)
crosser@ariel:/src/sox-12.15/$ ls -l sox
-rwxr-xr-x 1 crosser sovam 429247 Feb 23 13:13 sox*
crosser@ariel:/src/sox-12.15/$ strace ./sox
mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|0x20, 4294967295, 0) =
0x40007000
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++
crosser@ariel:/src/sox-12.15/$

Eugene

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