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[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]]
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id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
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Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
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[[!tag open_issue_glibc]]
This started appearing when Jérémie's [[glibc]] signal patches were integrated:
very sporadically, but still now and then, `fork` will hang, as follows, and
typically in `/bin/sh`.
From a `libtool` invocation:
#0 0x0107b13c in swtch_pri () at /build/eglibc-Q9jlik/eglibc-2.13/build-tree/hurd-i386-libc/mach/swtch_pri.S:2
No locals.
#1 0x0107c9c4 in __spin_lock_solid (lock=0x125080c) at spin-solid.c:27
No locals.
#2 0x01091427 in __spin_lock (__lock=<optimized out>) at ../mach/lock-intern.h:55
No locals.
#3 _hurd_sigstate_lock (ss=0x1250008) at hurdsig.c:172
No locals.
#4 0x011261ec in _hurd_critical_section_unlock (our_lock=<optimized out>) at ../hurd/hurd/signal.h:235
No locals.
#5 __fork () at ../sysdeps/mach/hurd/fork.c:706
env = {{__jmpbuf = {18784244, 19197896, 1, 16925832, 16925460, 17980399}, __mask_was_saved = 0, __saved_mask = 33}}
pid = 0
err = <optimized out>
__PRETTY_FUNCTION__ = "__fork"
ss = 0x1250008
threads = 0x0
nthreads = 0
stopped = 1
i = 6
[...]
Another one in `dash`:
#0 0x0105927c in swtch_pri () at /media/erich/home/thomas/tmp/glibc/debian/eglibc-2.13/build-tree/hurd-i386-libc/mach/swtch_pri.S:2
No locals.
#1 0x0105ac44 in __spin_lock_solid (lock=0x123580c) at spin-solid.c:27
No locals.
#2 0x010701c7 in __spin_lock (__lock=<optimized out>) at ../mach/lock-intern.h:55
No locals.
#3 _hurd_sigstate_lock (ss=0x1235008) at hurdsig.c:172
No locals.
#4 0x011048f0 in _hurd_critical_section_unlock (our_lock=0x1235008) at ../hurd/hurd/signal.h:235
ss = 0x1235008
pending = <optimized out>
#5 __fork () at ../sysdeps/mach/hurd/fork.c:706
env = {{__jmpbuf = {18780148, 19087304, 134621988, 0, 16938700, 17842902}, __mask_was_saved = 0, __saved_mask = 4294967295}}
pid = 0
err = 0
__PRETTY_FUNCTION__ = "__fork"
ss = 0x1235008
threads = 0x0
nthreads = 0
stopped = 1
i = 6
[...]
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