On Sun, 2009-08-02 at 01:40 +0200, Jan Christoph Nordholz wrote:
> Hi Michael,
>
> > No idea. If I were knew, I'd attach a patch for this issue.
> > The code is quite.. funny and fragile, I tried to understand
> > it right before submitting a bugreport but that wasn't quite
> > successful.
> >
> > I ran it under strace - pure automountd, without any startu
> > scripts but with the same args. It never ever tried to mkdir
> > or rename. It created two random dirs in /tmp, mounted a
> > tmpfs over one of them (running mount(8)), bind-mounted it
> > on second dir, next did stat("/misc") (which returned ENOENT)
> > and immediately gave up returning it can't mount /misc.
>
> this is the strace log on my system after the spawned umount
> process has terminated:
>
> ] 30451 --- SIGCHLD (Child exited) @ 0 (0) ---
> ] 30451 rmdir("/tmp/autoa1Aqlv") = 0
> ] 30451 rmdir("/tmp/autohY6Rkm") = 0
> ] 30451 rt_sigaction(SIGTERM, {0xb801dd70, [HUP USR1 USR2 ALRM TERM],
> SA_RESTART}, NULL, 8) = 0
> ] 30451 rt_sigaction(<<< several more >>>)
> ] 30451 open("/etc/mtab", O_RDONLY) = 8
> ] 30451 fstat64(8, {st_mode=S_IFREG|0644, st_size=701, ...}) = 0
> ] 30451 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0xb7fe7000
> ] 30451 read(8, "/dev/sda2 / ext3 rw,errors=remou"..., 4096) = 701
> ] 30451 read(8, "", 4096) = 0
> ] 30451 close(8) = 0
> ] 30451 munmap(0xb7fe7000, 4096) = 0
> ] 30451 stat64("/misc", 0xbfbca894) = -1 ENOENT (No such file or
> directory)
> ] 30451 open("/etc/mtab", O_RDONLY) = 8
> ] 30451 fstat64(8, {st_mode=S_IFREG|0644, st_size=701, ...}) = 0
> ] 30451 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0xb7fe7000
> ] 30451 read(8, "/dev/sda2 / ext3 rw,errors=remou"..., 4096) = 701
> ] 30451 read(8, "", 4096) = 0
> ] 30451 close(8) = 0
> ] 30451 munmap(0xb7fe7000, 4096) = 0
> ] 30451 statfs("/", {f_type="EXT2_SUPER_MAGIC", f_bsize=4096,
> f_blocks=9612195, f_bfree=5459645, f_bavail=4971364, f_files=2444624,
> f_ffree=2142
> ] 30451 mkdir("/misc", 0555) = 0
> ] 30451 pipe([8, 11]) = 0
> ] 30451 pipe([12, 13]) = 0
> ] 30451 rt_sigprocmask(SIG_BLOCK, ~[RTMIN RT_1], [], 8) = 0
> ] 30451 pipe([14, 15]) = 0
> ] 30451 clone(child_stack=0,
> flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
> child_tidptr=0xb7e7fb48) = 30454
> ] [...] <<<which calls:>>>
> ] 30454 execve("/bin/mount", ["/bin/mount", "-t", "autofs", "-o",
> "fd=11,pgrp=30451,minproto=2,maxp"..., "automount(pid30451)", "/misc"], [/*
> 44 vars */]) = 0
>
> Maybe you can spot the difference that's causing your automountd to
> give up - but I'd suggest switching to v5 anyway because upstream
> development on v4 has ceased, and I'd like to drop v4 before Squeeze
> is released.
Can I propose a simple workaround until v5 is out. Once upon a time the
automount init.d script used to create the dirs. What exactly is the
problem in doing this once again?
It is a one-liner after all.
Brgds,
>
>
> Regards,
>
> Jan
--
Understanding is a three-edged sword:
your side, their side, and the truth. --Kosh Naranek
A. R. Ivanov
E-mail: [email protected]
WWW: http://www.sigsegv.cx/
pub 1024D/DDE5E715 2002-03-03 Anton R. Ivanov <[email protected]>
Fingerprint: C824 CBD7 EE4B D7F8 5331 89D5 FCDA 572E DDE5 E715
--
To UNSUBSCRIBE, email to [email protected]
with a subject of "unsubscribe". Trouble? Contact [email protected]
