Ian Kent <[EMAIL PROTECTED]> writes: > On Thu, 2008-12-04 at 14:13 +0100, Martin Vogt wrote: >> >> Hello list, >> >> I'm currently experimenting with autofs on SuSE 11.1 rc1 >> >> -autofs-5.0.3-82.19 > > I don't know what this means in terms of patches applied, but ok. > >> >> Around the 1024th mount, autofs hangs and the machine needs a reboot -f. >> >> I have here >2000 mount points which usually look like this: >> >> /homes/vogt0001 --fstype=bind :/net/fsA/home/user/vogt0001 >> /homes/vogt0002 --fstype=bind :/net/fsB/home/user/vogt0002 >> [..] >> /homes/vogt2000 --fstype=bind :/net/fsC/home/user/vogt2000 > > So a direct map? > With many active real mounts, is that what you're saying? > >> >> >> Further debugging revealed: >> >> pxe1:/home/demo1 # lsof -p <automount pid> >> [...] >> automount 5111 root 1022r DIR 0,228 0 13029 /u/itwm/hinojosa >> automount 5111 root 1023r DIR 0,561 0 13362 /u/itwm/andrejs >> automount 5111 root 1024r FIFO 0,7 0t0 26910 pipe >> >> The 1024 really looks like some limit, which is hit by the automount >> process. > > Quite possibly, but I don't think there is anything autofs can do about > it since in autofs we see: > ... > #define MAX_OPEN_FILES 10240 > ... > rlim.rlim_cur = MAX_OPEN_FILES; > rlim.rlim_max = MAX_OPEN_FILES; > res = setrlimit(RLIMIT_NOFILE, &rlim); > if (res) > warn(logging, > "can't increase open file limit - continuing"); > > Unless I've not got this correct in some way the open file limit should > be much higher. But there are ways the OS configuration can limit this.
I'm pretty sure root processes bypass the max open fds check. [snip] >> Ah, the behavoir by autofs is: >> >> - It hangs on duing a mount operation: >> >> root 5111 0.0 0.1 97200 2936 pts/0 Sl+ 13:30 0:01 >> /usr/sbin/automount -d -f -t 600 -p /var/run/automount.pid -O ro >> root 9541 0.0 0.0 0 0 pts/0 Z+ 13:31 0:00 [mount] >> <defunct> > > So maybe mount(8) and its relatives are the problem, not sure I can do > much about that either. Yeah, strange. Can we figure out what the mount commandline was for this zombie? -Jeff _______________________________________________ autofs mailing list autofs@linux.kernel.org http://linux.kernel.org/mailman/listinfo/autofs
