Date: Tue, 31 Aug 2004 14:28:00 +0400 From: Vladimir Grebenschikov <vova@fbsd.ru> To: "current@freebsd.org" <current@freebsd.org> Subject: sysutils/strace wilderness on 6-CURRENT Message-ID: <1093948080.29903.14.camel@localhost>
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Hi
(fresh -CURREMT and fresh strace from ports, UP machine)
It silmple does nothing - sleeps foreaver in suspended:
# strace /bin/ls
^T
load: 0.14 cmd: strace 98957 [suspended] 0.00u 0.00s 0% 760k
^C
#
child program does not executed too.
But if do sometimes (often) if I do
# truss strace /bin/ls
(it works as expected)
and then
# strace /bin/ls
execve(0xbfbfe0e0, [0xbfbfe5c4], [/* 0 vars */]) = 0
mmap(0, 3880, PROT_READ|PROT_WRITE, MAP_ANON, -1, 0) = 0x28071000
munmap(0x28071000, 3880) = 0
__sysctl([...], 0x2806da4c, 0xbfbfe378, NULL, 0) = 0
mmap(0, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0) =
0x28071000
issetugid(0) = 0
open("/etc/libmap.conf", O_RDONLY) = 3
...
strace start work as expected, but only one time, second time it stick
again.
view from KDB:
[thread 100016]
Stopped at kdb_enter+0x30: leave
db> ps
pid proc uarea uid ppid pgrp flag stat wmesg wchan
cmd
99035 c32448c0 d6a85000 207 99034 99034 0020002 stop[SUSP] strace
99034 c21f8a80 d7911000 207 98930 99034 0004002 [SLPQ pioctl
0xc32449e8][SLP] strace
--
Vladimir B. Grebenchikov
vova@fbsd.ru
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