[9fans] double sleep

[9fans] double sleep

[ron minnich]

OK, it is hard to get this to repeat, and I lost it last time. But
after running venti a while
and doing a venti copy with vx32 as the dst I eventually get a double
sleep in the
io kproc.

I'll try to get it to fail again :-)

ron

Re: [9fans] double sleep

[Russ Cox]

> OK, it is hard to get this to repeat, and I lost it last time. But
> after running venti a while
> and doing a venti copy with vx32 as the dst I eventually get a double
> sleep in the
> io kproc.
>
> I'll try to get it to fail again :-)

Please run with -A so that if it happens again
you can attach gdb and run "thread apply all where 20"

Thanks.
Russ

Re: [9fans] double sleep

[ron minnich]

Thread 8 (Thread -1759208560 (LWP 2898)):
#0  0xb7f2e424 in __kernel_vsyscall ()
#1  0x4e6f7a43 in poll () from /lib/libc.so.6
#2  0x4117fa99 in ?? () from /usr/lib/libX11.so.6
#3  0x4117fe7f in _XRead () from /usr/lib/libX11.so.6
#4  0x411816bb in _XReadEvents () from /usr/lib/libX11.so.6
#5  0x4116a7ab in XNextEvent () from /usr/lib/libX11.so.6
#6  0x080a08d9 in _xproc (v=0x0) at 9vx/x11/x11-kernel.c:108
#7  0x08056c1b in linkproc () at 9vx/trap.c:484
#8  0x00000000 in ?? ()

Thread 7 (Thread -1768916080 (LWP 2899)):
#0  0x4e701723 in __call_pselect6 () from /lib/libc.so.6
#1  0x4e6fa723 in pselect () from /lib/libc.so.6
#2  0x0805611a in timerkproc (v=0x0) at 9vx/time.c:187
#3  0x08056c1b in linkproc () at 9vx/trap.c:484
#4  0x00000000 in ?? ()

Thread 6 (Thread -1778623600 (LWP 2900)):
#0  0xb7f2e424 in __kernel_vsyscall ()
#1  0x4e7d7206 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x080534d2 in runproc () at 9vx/sched.c:237
#3  0x0808df2b in sched () at 9vx/a/proc.c:165
#4  0x080523f1 in squidboy (v=0x828e248) at 9vx/main.c:723
#5  0x4e7d344b in start_thread () from /lib/libpthread.so.0
#6  0x4e70180e in clone () from /lib/libc.so.6

Thread 5 (Thread -1792275568 (LWP 2901)):
#0  0xb7f2e424 in __kernel_vsyscall ()
#1  0x4e7d7206 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x080534d2 in runproc () at 9vx/sched.c:237
#3  0x0808df2b in sched () at 9vx/a/proc.c:165
#4  0x080523f1 in squidboy (v=0x829f930) at 9vx/main.c:723
#5  0x4e7d344b in start_thread () from /lib/libpthread.so.0
#6  0x4e70180e in clone () from /lib/libc.so.6

Thread 4 (Thread -1808557168 (LWP 2902)):
#0  0xb7f2e424 in __kernel_vsyscall ()
#1  0x4e7da008 in accept () from /lib/libpthread.so.0
#2  0x0804f227 in so_accept (fd=35, raddr=0x96105f64,
rport=0x96105f6a) at 9vx/devip-posix.c:102
#3  0x0804e3c2 in ipopen (c=0x82e0b38, omode=2) at 9vx/devip.c:303
#4  0x08050b6b in kserve (kc=0x93239b50) at 9vx/kprocdev.c:98
#5  0x0805155a in kserver (v=0x827d788) at 9vx/kprocdev.c:155
#6  0x08056c1b in linkproc () at 9vx/trap.c:484
#7  0x00000000 in ?? ()

Thread 3 (Thread -1832952944 (LWP 2903)):
#0  0xb7f2e424 in __kernel_vsyscall ()
#1  0x4e7da008 in accept () from /lib/libpthread.so.0
#2  0x0804f227 in so_accept (fd=37, raddr=0x930f8f64,
rport=0x930f8f6a) at 9vx/devip-posix.c:102
#3  0x0804e3c2 in ipopen (c=0x82ee158, omode=2) at 9vx/devip.c:303
#4  0x08050b6b in kserve (kc=0x915a7b50) at 9vx/kprocdev.c:98
#5  0x0805155a in kserver (v=0x82c6810) at 9vx/kprocdev.c:155
#6  0x08056c1b in linkproc () at 9vx/trap.c:484
#7  0x00000000 in ?? ()

Thread 2 (Thread -1846604912 (LWP 2904)):
#0  0xb7f2e424 in __kernel_vsyscall ()
#1  0x4e7d7206 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x080534d2 in runproc () at 9vx/sched.c:237
#3  0x0808df2b in sched () at 9vx/a/proc.c:165
#4  0x080523f1 in squidboy (v=0x82e6040) at 9vx/main.c:723
#5  0x4e7d344b in start_thread () from /lib/libpthread.so.0
#6  0x4e70180e in clone () from /lib/libc.so.6

Thread 1 (Thread -1208953152 (LWP 2897)):
#0  0xb7f2e424 in __kernel_vsyscall ()
#1  0x4e7d7206 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x08053646 in idlehands () at 9vx/sched.c:237
#3  0x0808cc06 in _runproc () at 9vx/a/proc.c:542
#4  0x0805343a in runproc () at 9vx/sched.c:118
#5  0x0808df2b in sched () at 9vx/a/proc.c:165
#6  0x0805277b in main (argc=<value optimized out>, argv=<value
optimized out>) at 9vx/main.c:202
#0  0xb7f2e424 in __kernel_vsyscall ()


It died quickly this time.

Thanks

ron