diff options
Diffstat (limited to 'open_issues')
| -rw-r--r-- | open_issues/fork_deadlock.mdwn | 65 | ||||
| -rw-r--r-- | open_issues/glibc.mdwn | 17 |
2 files changed, 65 insertions, 17 deletions
diff --git a/open_issues/fork_deadlock.mdwn b/open_issues/fork_deadlock.mdwn new file mode 100644 index 00000000..6b90aa0a --- /dev/null +++ b/open_issues/fork_deadlock.mdwn @@ -0,0 +1,65 @@ +[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +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 +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!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 + [...] diff --git a/open_issues/glibc.mdwn b/open_issues/glibc.mdwn index 26fa6012..6c52cc7f 100644 --- a/open_issues/glibc.mdwn +++ b/open_issues/glibc.mdwn @@ -39,29 +39,12 @@ git log --reverse --pretty=fuller --stat=$COLUMNS,$COLUMNS -p -C --cc ..sourcewa Last reviewed up to the [[Git mirror's d40c5d54cb551acba4ef1617464760c5b3d41a14 (2012-02-28) sources|source_repositories/glibc]]. - * t/dup3 - - [[tschwinge]] is not convinced that - 22542dcc89805af8d9bd9209129259d2737372b5 (and then also - ff3f3a789ba08b656dbaa3901091b6410bb883f8) are correct. - - * 94b7cc3711b0b74c1d3ae18b9a2e019e51a8e0bf -- dup3 changes; relevant for - `t/dup3`: hidden def. ed690b2f24bbc4d9c541fc81a7c67e6dc5678a96 -- why - not for dup3, too? Because it is a syscall (that is always inlined)? - * `t/hurdsig-fixes` hurdsig.c: In function '_hurd_internal_post_signal': hurdsig.c:1188:26: warning: 'pending' may be used uninitialized in this function [-Wmaybe-uninitialized] hurdsig.c:1168:12: note: 'pending' was declared here - * `t/init-first.c` - - Follow up here: [[!message-id "20070722171859.GN25744@fencepost.gnu.org"]] - or [[!message-id "87mxe4kwws.fsf@gnu.org"]]. Close [[!GNU_Savannah_bug - 17647]]. Debian: [[!message-id "E1Qup1U-0006Zc-39@vasks.debian.org"]] - (part of Ludo's patch; the part that is not harmful to GCC 4.4). - * `t/kernel-features.h_includes` Before running `tg update`, review for additional changes: |