Messages in this thread |  | | Date | Mon, 12 Feb 2001 11:14:48 +0100 | From | Olaf Hering <> | Subject | Re: race in autofs / nfs |
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On Mon, Feb 12, Trond Myklebust wrote:
> >>>>> " " == H Peter Anvin <hpa@transmeta.com> writes: > > > Olaf Hering wrote: > >> > >> Hi, > >> > >> there is a race in 2.4.1 and 2.4.2-pre3 in autofs/nfs. When > >> the cwd is on the nfs mounted server (== busy) and you try to > >> reboot the shutdown hangs in "rcautofs stop". I can reproduce > >> it everytime. > >> > > > Sounds like an NFS bug in umount. > > Or a dcache bug: the above points to a corruption of the mnt_count > which is supposed to be > 0 if the partition is in use. I'm seeing a > similar leak for ext2 partitions (not involving autofs or NFS).
Some more updates:
This machines run the upcoming 7.1-ppc with autofs-4.0.0pre9. When I install 7.0-ppc it runs rocksolid with the same kernel binary. 7.0 came with autofs-4.0.0pre7:
Linux plum 2.4.1 #1 Sun Feb 11 11:56:01 GMT 2001 ppc unknown Kernel modules 2.4.1 Gnu C 2.95.3 Binutils 2.9.5.0.24 Linux C Library x 1 root root 4209204 Oct 4 21:42 /lib/libc.so.6 Dynamic linker ldd (GNU libc) 2.1.3 Procps 2.0.6 Mount 2.10m Net-tools 1.56 Kbd 0.99 Sh-utils 2.0 Modules Loaded snd-card-awacs snd-pcm snd-timer snd-mixer snd soundcore ipv6 netlink_dev nfsd autofs bmac pcmcia_core
(hmm, it loads autofs and not autofs4 on 7.0?)
It hangs again after a while, in this case: cc1plus 19126 181495 2903920 4 u01783c18 c44ca000 1 current automoun 19129 183289 2932624 54 u0176a368 c42ca000 0 current _spin_lock(c021b754) CPU#1 NIP c0 072f18 holder: cpu 0 pc C0057A18
I will try the older autofs package now.
Gruss Olaf
-- $ man clone
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