* recent zsh-4.3.0 snapshot hangs @ 2005-07-18 8:49 Alexey Tourbin 2005-07-18 9:21 ` Alexey Tourbin 0 siblings, 1 reply; 6+ messages in thread From: Alexey Tourbin @ 2005-07-18 8:49 UTC (permalink / raw) To: zsh-workers [-- Attachment #1: Type: text/plain, Size: 424 bytes --] Hello, Recent zsh snashot hangs and fails to produce a prompt. When started as 'zsh -x', the following lines are executed right before the hang occures: +compdump:95> read -rA _d_line +compdump:101> print +compdump:106> _d_als=+compdump:1> typeset +fm '_*' I've got a few my own patches to zsh, but they are least suspectable at the moment. Can anybody reproduce this? -- Alexey Tourbin ALT Linux Team [-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: recent zsh-4.3.0 snapshot hangs 2005-07-18 8:49 recent zsh-4.3.0 snapshot hangs Alexey Tourbin @ 2005-07-18 9:21 ` Alexey Tourbin 2005-07-18 9:47 ` Peter Stephenson 0 siblings, 1 reply; 6+ messages in thread From: Alexey Tourbin @ 2005-07-18 9:21 UTC (permalink / raw) To: zsh-workers [-- Attachment #1: Type: text/plain, Size: 849 bytes --] On Mon, Jul 18, 2005 at 12:49:00PM +0400, Alexey Tourbin wrote: > Recent zsh snashot hangs and fails to produce a prompt. > When started as 'zsh -x', the following lines are executed > right before the hang occures: > > +compdump:95> read -rA _d_line > +compdump:101> print > +compdump:106> _d_als=+compdump:1> typeset +fm '_*' [test@solemn test]$ zsh -cx 'HOSTNAME=`/bin/hostname`' +/etc/zshenv:9> [ -f /etc/profile.d/tmpdir.sh ']' +/etc/zshenv:9> . /etc/profile.d/tmpdir.sh +/etc/profile.d/tmpdir.sh:3> [ -z /home/test/tmp ']' +/etc/profile.d/tmpdir.sh:3> [ ! -d /home/test/tmp ']' +/etc/zshenv:10> TMPPREFIX=/home/test/tmp/zsh +zsh:1> HOSTNAME=+zsh:1> /bin/hostname [... zsh hangs ...] This is 20050716 snapshot, the last change was made in Completion/Unix/Command/_python. I had no such problem with 20050609 snapshot. [-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: recent zsh-4.3.0 snapshot hangs 2005-07-18 9:21 ` Alexey Tourbin @ 2005-07-18 9:47 ` Peter Stephenson 2005-07-18 10:17 ` Alexey Tourbin 0 siblings, 1 reply; 6+ messages in thread From: Peter Stephenson @ 2005-07-18 9:47 UTC (permalink / raw) To: zsh-workers Alexey Tourbin wrote: > [test@solemn test]$ zsh -cx 'HOSTNAME=3D`/bin/hostname`' > +/etc/zshenv:9> [ -f /etc/profile.d/tmpdir.sh ']' > +/etc/zshenv:9> . /etc/profile.d/tmpdir.sh > +/etc/profile.d/tmpdir.sh:3> [ -z /home/test/tmp ']' > +/etc/profile.d/tmpdir.sh:3> [ ! -d /home/test/tmp ']' > +/etc/zshenv:10> TMPPREFIX=3D/home/test/tmp/zsh > +zsh:1> HOSTNAME=3D+zsh:1> /bin/hostname > [... zsh hangs ...] So it looks like it's independent of startup files: are you able to confirm this? Does it still happen after a rebuild from scratch? The latest code is working OK on Solaris 8 on SPARC and Fedora Core 3 on x86. At worst you might be stuck with a binary search of the archive. -- Peter Stephenson <pws@csr.com> Software Engineer CSR PLC, Churchill House, Cambridge Business Park, Cowley Road Cambridge, CB4 0WZ, UK Tel: +44 (0)1223 692070 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. ********************************************************************** ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: recent zsh-4.3.0 snapshot hangs 2005-07-18 9:47 ` Peter Stephenson @ 2005-07-18 10:17 ` Alexey Tourbin 2005-07-18 15:29 ` Bart Schaefer 0 siblings, 1 reply; 6+ messages in thread From: Alexey Tourbin @ 2005-07-18 10:17 UTC (permalink / raw) To: zsh-workers [-- Attachment #1: Type: text/plain, Size: 2289 bytes --] On Mon, Jul 18, 2005 at 10:47:29AM +0100, Peter Stephenson wrote: > Alexey Tourbin wrote: > > [test@solemn test]$ zsh -cx 'HOSTNAME=3D`/bin/hostname`' > > +/etc/zshenv:9> [ -f /etc/profile.d/tmpdir.sh ']' > > +/etc/zshenv:9> . /etc/profile.d/tmpdir.sh > > +/etc/profile.d/tmpdir.sh:3> [ -z /home/test/tmp ']' > > +/etc/profile.d/tmpdir.sh:3> [ ! -d /home/test/tmp ']' > > +/etc/zshenv:10> TMPPREFIX=3D/home/test/tmp/zsh > > +zsh:1> HOSTNAME=3D+zsh:1> /bin/hostname > > [... zsh hangs ...] > > So it looks like it's independent of startup files: are you able to > confirm this? Does it still happen after a rebuild from scratch? I do build from scratch (but I have ccache). Here is strace log for HOSTNAME=`/bin/hostname`: [pid 3629] uname({sys="Linux", node="solemn.turbinal.org", ...}) = 0 [pid 3629] fstat64(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 [pid 3629] mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4002a000 [pid 3629] write(1, "solemn.turbinal.org\n", 20) = 20 [pid 3629] munmap(0x4002a000, 4096) = 0 [pid 3629] exit_group(0) = ? fcntl64(12, F_GETFL) = 0 (flags O_RDONLY) fstat64(12, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x401ca000 _llseek(12, 0, 0xbffff324, SEEK_CUR) = -1 ESPIPE (Illegal seek) read(12, "solemn.turbinal.org\n", 4096) = 20 read(12, "", 4096) = 0 close(12) = 0 munmap(0x401ca000, 4096) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [CHLD], 8) = 0 kill(3629, SIG_0) = 0 rt_sigprocmask(SIG_SETMASK, ~[HUP INT CHLD], [CHLD], 8) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- rt_sigprocmask(SIG_BLOCK, ~[], ~[HUP INT KILL STOP], 8) = 0 rt_sigprocmask(SIG_SETMASK, ~[HUP INT KILL STOP], ~[KILL STOP], 8) = 0 wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG|WSTOPPED, {ru_utime={0, 10000}, ru_stime={0, 0}, ...}) = 3629 getrusage(RUSAGE_CHILDREN, {ru_utime={0, 10000}, ru_stime={0, 0}, ...}) = 0 wait4(-1, 0xbfffece0, WNOHANG|WSTOPPED, 0xbfffece4) = -1 ECHILD (No child processes) sigreturn() = ? (mask now ~[HUP INT KILL CHLD STOP]) pause( [-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: recent zsh-4.3.0 snapshot hangs 2005-07-18 10:17 ` Alexey Tourbin @ 2005-07-18 15:29 ` Bart Schaefer 2005-07-19 8:54 ` Alexey Tourbin 0 siblings, 1 reply; 6+ messages in thread From: Bart Schaefer @ 2005-07-18 15:29 UTC (permalink / raw) To: zsh-workers On Jul 18, 2:17pm, Alexey Tourbin wrote: } } Here is strace log for HOSTNAME=`/bin/hostname`: } } pause( What platform is this? (Linux, but can you be more specific? Is it multiprocessor or otherwise using an SMP kernel?) Unless your config.h defines BROKEN_POSIX_SIGSUSPEND, there's only one call to pause() in the sources, in signal_suspend(). I can't see any recent changes that would be even remotely related to this, except for zsh-workers/21391, and that's from more than one snapshot ago. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: recent zsh-4.3.0 snapshot hangs 2005-07-18 15:29 ` Bart Schaefer @ 2005-07-19 8:54 ` Alexey Tourbin 0 siblings, 0 replies; 6+ messages in thread From: Alexey Tourbin @ 2005-07-19 8:54 UTC (permalink / raw) To: zsh-workers [-- Attachment #1: Type: text/plain, Size: 1211 bytes --] On Mon, Jul 18, 2005 at 03:29:36PM +0000, Bart Schaefer wrote: > On Jul 18, 2:17pm, Alexey Tourbin wrote: > } > } Here is strace log for HOSTNAME=`/bin/hostname`: > } > } pause( > > What platform is this? (Linux, but can you be more specific? Is it > multiprocessor or otherwise using an SMP kernel?) $ uname -rms Linux 2.4.20-alt7-up i686 $ rpm -q glibc glibc-2.3.3.200406160000-alt1 $ > Unless your config.h defines BROKEN_POSIX_SIGSUSPEND, there's only > one call to pause() in the sources, in signal_suspend(). One important thing I didn't realize until now: the whole build process was run under strace(1). (Don't ask me why. (In short, this was build-time dependency analysis.)) So I tend to blame strace now, since it does some clever mangling which affects process control behaviour, which in turn could affect configure tests: If the parent process decides to wait(2) for a child that is currently being traced, it is suspended until an appropriate child process either terminates or incurs a signal that would cause it to terminate (as determined from the child's current signal dis- position). Now I'm trying to find out the exact reason. [-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-07-19 8:55 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2005-07-18 8:49 recent zsh-4.3.0 snapshot hangs Alexey Tourbin 2005-07-18 9:21 ` Alexey Tourbin 2005-07-18 9:47 ` Peter Stephenson 2005-07-18 10:17 ` Alexey Tourbin 2005-07-18 15:29 ` Bart Schaefer 2005-07-19 8:54 ` Alexey Tourbin
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