process in STOP state

[Gardner Bell]

Kostik Belousov wrote:
> On Tue, Jan 12, 2010 at 06:15:31PM -0500, Gardner Bell wrote:
>> Hello,
>>
>> Just updated my 8.0-STABLE desktop to r202128 the other day and can no 
>> longer run certain windows executables through wine without them almost 
>> immediately entering the STOP state and using 100% CPU for a short 
>> period of time.  Has anyone else ran into a similar issue lately?
>>
>> I'm able to get the program to continue as normal by attaching the pid 
>> trough gdb, but would for obvious reasons prefer not to do that.  Any 
>> help trying to find the underlying cause would be appreciated as this 
>> has not been a problem with revisions previous to r202128.
> 
> You can check whether the process is multithreaded (most likely, it is),
> and, if so, what is the state of different threads. procstat -t <pid>
> and then procstat -k <pid> would probably give some information for
> the start.

Here's the output from procstat -k and -t.  I've compiled my kernel with 
KDB and DDB support if there is anything needed from that.

   PID    TID COMM             TDNAME           CPU  PRI STATE   WCHAN
44900 100162 wine             initial thread     1  160 stop    -
44900 100178 wine             -                  1  131 stop    -
44900 100179 wine             -                  1  140 stop    -
44900 100180 wine             -                  0  160 stop    piperd
44900 100182 wine             -                  1  160 stop    select
44900 100183 wine             -                  0  160 stop    -
44900 100184 wine             -                  0  160 stop    -
44900 100185 wine             -                  1  160 stop    -
44900 100186 wine             -                  0  160 stop    -
44900 100190 wine             -                  0  160 stop    -
44900 100191 wine             -                  0  160 stop    piperd
44900 100192 wine             -                  1  160 stop    -
44900 100194 wine             -                  0  160 stop    -
44900 100195 wine             -                  0  141 stop    piperd
44900 100200 wine             -                  1  160 stop    -
44900 100201 wine             -                  1  160 stop    -
44900 100202 wine             -                  0  160 stop    piperd
44900 100203 wine             -                  1  160 stop    piperd
44900 100204 wine             -                  1  160 stop    piperd
44900 100205 wine             -                  0  160 stop    -
44900 100206 wine             -                  0  160 stop    -

%procstat -k 44900
   PID    TID COMM             TDNAME           KSTACK 

44900 100162 wine             initial thread   mi_switch 
thread_suspend_check as 
                                                      t doreti_ast
44900 100178 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_cv_timedwait_sig seltdwait kern_select select 
 
       syscall Xint0x80_syscall
44900 100179 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_cv_timedwait_sig seltdwait kern_select select 
 
       syscall Xint0x80_syscall
44900 100180 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100182 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_cv_wait_sig seltdwait poll syscall Xint0x80_syscall 
 

44900 100183 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_cv_timedwait_sig seltdwait poll syscall Xint0x 
 
       80_syscall
44900 100184 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_cv_timedwait_sig seltdwait kern_select select 
 
       syscall Xint0x80_syscall
44900 100185 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_cv_timedwait_sig seltdwait kern_select select 
 
       syscall Xint0x80_syscall
44900 100186 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_cv_timedwait_sig seltdwait kern_select select 
 
       syscall Xint0x80_syscall
44900 100190 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_cv_timedwait_sig seltdwait kern_select select 
 
       syscall Xint0x80_syscall
44900 100191 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100192 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100194 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100195 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100200 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_sleep kern_kevent kevent syscall Xint0x80_sysc 
 
       all
44900 100201 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_sleep kern_kevent kevent syscall Xint0x80_sysc 
 
       all
44900 100202 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100203 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100204 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_wait_sig 
_sleep pipe_read dofileread kern_readv read syscall 
 
            Xint0x80_syscall
44900 100205 wine             -                mi_switch sleepq_switch 
sleepq_ca 
                                        tch_signals sleepq_timedwait_sig 
_sleep kern_kevent kevent syscall Xint0x80_sysc 
 
       all
44900 100206 wine             -                mi_switch 
thread_suspend_switch c 
                                                      ursig ast doreti_ast