[2.2-pre5] strace stackdumps?

Marcus Meissner (marcus@jet.franken.de)
Sat, 9 Jan 1999 14:01:58 +0100 (MET)


Hi,

I am running Linux 2.2-pre5, UNI. While doing cvs update on a remote
anon cvs server, I usually do "strace -p <cvspid>" to check for progress.

This works usually, but does give strange output in pre5.

cvs is usually waiting for networkinput in "read(4,..." from a tcp socket at
this point.

Messages dumped to syslog:

Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867e80, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c016946d>] [<c01764ca>] [<c015a196>] [<c015a2aa>] [<c0122786>] [<c01087f4>]
tcp_recvmsg+0x301 inet_recvmsg+0x8e sock_recvmsg+0x3a sock_read+0x96
Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867ef0, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c010853b>] [<c0122786>] [<c0122793>] [<c0108844>]
do_signal+0xa3 sys_read+0xbe sys_read+0xcb signal_return+0x14
Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867f8c, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c010ba59>] [<c010886d>]
syscall_trace+0x69 tracesys+0xd
Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867f8c, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c010ba59>] [<c010886d>]
Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867f8c, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c010ba59>] [<c010886d>]
Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867f8c, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c010ba59>] [<c010886d>]
Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867f8c, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c010ba59>] [<c010886d>]
Jan 9 13:29:00 localhost kernel: Process: cvs (stack=c3867f8c, task=c3866000)
Jan 9 13:29:00 localhost kernel: [<c010ba59>] [<c010886d>]

Addresses turned to symbols by hand, since ksymoops does not seem to like them.

Seems to be printed by print_child_state(child); in arch/i386/kernel/ptrace.c,
but WHY?

Ciao, Marcus

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