Mach panic: thread has unexpected state

[olafBuddenhagen]

Hi,

While shutting down a subhurd today, I encounted a Mach panic; and I
already encountered a rather similar one once a couple of months ago.
(Might also have been while shutting down subhurd, but I can't say for
sure anymore.) I'm attaching both traces -- perhaps someone gets an
idea.

Note that the thread state is 14 in one and 114 in the other -- most
likely I simply mistyped it in one of them, as I can only write down the
panic message by hand...

It might be worth noting that the system already had more or less
reached the mysterious "swap usage matches physical RAM size" state when
the crash occured -- it *might* just be another manifestation of the
problem I guess... Though it doesn't seem very likely that resource
exhaustion would cause this kind of corruption, unless there is a bug in
some error path.

-antrik-

panic: thread_invoke: thread 21f1b3e0 has unexpected state 14

0x11e919(181396,25428e64,20dc24e0,17b784,21f1b3e0)
0x11ea01(181396,25428e8c,11e8e0,0,0)
0x11e9ae(17b784,181785,21f1b3e0,14,14bea000)
0x124dfa(21f1b3e0,106204,21ea1ee8,20001520,25428f20)
0x124f30(106204,2000977c,1ffd5680,21f1b3e0,21f1b3e0)
0x12755f(20d6a850,21552300,130df20,0,25428fc0)
0x11eb30(21552300,124ec5,1ffd5680,124fd0,2000977c)
0x11ee09(0,21552300,0,0,1)
0x11ee98(2105c46.,21ea2084,124bd0,25428fe4,25428f50)

olaf@sky:~$ addr2line -f -e gnumach_dde 0x11e91a 0x11ea01 0x11e9ae 0x124dfa 
0x124f30 0x12755f 0x11eb30 0x11ee09 0x11ee98
SoftDebugger
/usr/src/gnumach_zhengda/kern/debug.c:106
Debugger
/usr/src/gnumach_zhengda/kern/debug.c:117
panic
/usr/src/gnumach_zhengda/kern/debug.c:176
state_panic
/usr/src/gnumach_zhengda/kern/sched_prim.c:381
thread_block
/usr/src/gnumach_zhengda/kern/sched_prim.c:887
thread_halt_self
/usr/src/gnumach_zhengda/kern/thread.c:1166
exception_no_server
/usr/src/gnumach_zhengda/kern/exception.c:267
exception_raise_continue_slow
/usr/src/gnumach_zhengda/kern/exception.c:924
exception_raise_continue
/usr/src/gnumach_zhengda/kern/exception.c:858

panic: thread_dispatch: thread 215e1bb8 has unexpected state 114

0x11e919(181396,25371dfc,2000eb9c,17b784,20c768bc)
0x11ea01(181396,25371e24,11e8e0,0,0)
0x11e9ae(17b784,181775,215e1bb8,114,20c768bc)
0x124b16(215e1bb8,0,215e1bb8,153a4f,20bfb058)
0x124c97(20c768bc,0,215e1bb8,0,0)
0x124f30(0,1,25371f10,107163,20c76a08)
0x12663c(20bfae58,0,7,12012f,0)
0x11eb2b(221b8408,20004224,209760a8,221b8408,130ef30)
0x11ecee(21b0d2e8,221b8408,20c768bc,0,0)
0x150662(130ef30,3,20,1000,1d)
Bad frame pointer: 0x130def8

olaf@sky:~$ addr2line -f -e gnumach_dde 0x11e919 0x11ea01 0x11e9ae 0x124b16 
0x124c97 0x124f30 0x12663c 0x11eb2b 0x11ecee 0x150662
SoftDebugger
/usr/src/gnumach_zhengda/kern/debug.c:104
Debugger
/usr/src/gnumach_zhengda/kern/debug.c:117
panic
/usr/src/gnumach_zhengda/kern/debug.c:176
state_panic
/usr/src/gnumach_zhengda/kern/sched_prim.c:381
thread_invoke
/usr/src/gnumach_zhengda/kern/sched_prim.c:817
thread_block
/usr/src/gnumach_zhengda/kern/sched_prim.c:887
task_terminate
/usr/src/gnumach_zhengda/kern/task.c:384
exception_no_server
/usr/src/gnumach_zhengda/kern/exception.c:266
exception_raise_continue_fast
/usr/src/gnumach_zhengda/kern/exception.c:986
mach_msg_trap
/usr/src/gnumach_zhengda/ipc/mach_msg.c:917