Re: [patch] Re: Problem with exiting threads under NPTL

dan carpenter
2003-12-15T09:34:03Z

I'm running the patch from BK and I still get unkillable zombies. I'm running
strace on these processes and I don't know if that makes a difference.
Basically, my program is a modified strace that calls the syscalls as well as
printing it out... (I'm trying to test the kernel with bogus syscalls).

When I hit ALT-SYSREQ-T most of the zombie processes look like this.

msgctl09 Z 9FF99D73 0 1503 1465 1505 1500 (L-TLB)
c9fc9f68 00000046 c88b49b0 9ff99d73 00000258 c81cea08 c9fc9f68 c012a65b
c81ce9b0 00000011 9ff99d73 00000258 c88b49b0 c11e5bc0 000734f9 a150a7ac
00000258 c81ce9b0 cbfa7f38 c81cefc4 cbfe8850 00000000 c81ce9b0 c9fc9f90
Call Trace:
[<c012a65b>] exit_notify+0x2eb/0x900
[<c012b08f>] do_exit+0x41f/0x5c0
[<c012b3d7>] do_group_exit+0x107/0x190
[<c010aa8f>] syscall_call+0x7/0xb

There are some process that are stuck but not in zombie state that look like
this.

mknod09 T 00000001 0 1403 1 1420 1394 (NOTLB)
c73adf80 00000082 c11e5bc0 00000001 00000001 c2e91c28 cbfa3f38 858434c0
00000256 c35529b0 c11e5bc0 00000ebe 85843808 c11e5bc0 000004c0 858731ea
00000256 c62c39b0 08053000 c73ac000 c73ac000 08053000 c73ac000 c73adfa4
Call Trace:
[<c0131209>] ptrace_notify+0x49/0xf6
[<c015c4ac>] sys_brk+0x2c/0x130
[<c0110cf8>] do_syscall_trace+0x48/0x73
[<c010ab01>] syscall_trace_entry+0x11/0x24

The CPU usage is normal.

thanks,
dan carpenter