Date: Mon, 25 Apr 2005 14:17:28 -0500 (CDT) From: =?ISO-8859-1?Q?Se=E1n_C=2E_Farley?= <sean-freebsd@farley.org> To: David Xu <davidxu@freebsd.org> Cc: FreeBSD-gnats-submit@freebsd.org Subject: Re: gnu/77818: GDB locks in wait4() when running applications Message-ID: <20050425141315.I25522@thor.farley.org> In-Reply-To: <4264C33B.8020207@freebsd.org> References: <200502210120.j1L1KIM3024205@freefall.freebsd.org> <20050418155836.L11216@thor.farley.org> <4264C33B.8020207@freebsd.org>
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On Tue, 19 Apr 2005, David Xu wrote: > I have commited a fix to -CURRENT, don't know if it will fix the > problem you have seen, but it is worth to try. > > David Xu > > Seán C. Farley wrote: > >> I finally compiled Zsh with debugging and got the following trace. I >> ran it by the following line: >> LD_LIBRARY_PATH=/tmp/libc SHELL=/bin/sh gdb /usr/local/bin/zsh >> >> Program received signal SIGINT, Interrupt. >> 0x281a9efb in sigsuspend () from /lib/libc.so.5 >> (gdb) where >> #0 0x281a9cfb in sigsuspend () at sigsuspend.S:2 >> #1 0x280e07dc in signal_suspend (sig=20, sig2=2) at signals.c:367 >> #2 0x280b92e8 in waitforpid (pid=11195) at jobs.c:1120 >> #3 0x280a3dda in getoutput (cmd=0x8060e5c "uname -s", qt=1) at exec.c:2869 >> #4 0x280e2a0c in stringsubst (list=0xbfbfe7c0, node=0xbfbfe7d0, ssub=4, >> asssub=0) at subst.c:189 >> #5 0x280e2378 in prefork (list=0xbfbfe7c0, flags=6) at subst.c:74 >> #6 0x280a0886 in addvars (state=0xbfbfe880, pc=0xbfbfe7c0, export=0) >> at exec.c:1614 >> #7 0x2809ec5d in execsimple (state=0x1) at exec.c:802 >> #8 0x2809edb7 in execlist (state=0xbfbfe880, dont_change_job=0, exiting=0) >> at exec.c:855 >> #9 0x2809eb9a in execode (p=0x80608e0, dont_change_job=0, exiting=0) >> at exec.c:775 >> #10 0x280b3a8a in loop (toplevel=0, justonce=0) at init.c:165 >> #11 0x280b58b8 in source (s=0xbfbfe950 "/root/.zshenv") at init.c:1043 >> #12 0x280b5b1c in sourcehome (s=0x280f458d ".zshenv") at init.c:1088 >> #13 0x280b54e7 in run_init_scripts () at init.c:937 >> #14 0x280b63da in zsh_main (argc=1, argv=0xbfbfeac0) at init.c:1262 >> #15 0x08048583 in main (argc=1, argv=0xbfbfeac0) at ./main.c:93 >> >> I hope this can help find the problem. Would you happen to have a patch to -STABLE for the fix? I looked at some of the code you committed recently and was unsure of what fix(es) needed to be made to test it. A few of the changes did not look like they matched easily to -STABLE. Thank you. Seán -- sean-freebsd@farley.org
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