Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"
 
PerlMonks  

Re: Coro + LWP freezes (*trace)

by tye (Cardinal)
on Aug 25, 2012 at 21:08 UTC ( #989756=note: print w/ replies, xml ) Need Help??


in reply to Coro + LWP freezes

App::Stacktrace and strace (or truss)

- tye        


Comment on Re: Coro + LWP freezes (*trace)
Re^2: Coro + LWP freezes (*trace)
by elgato (Novice) on Aug 26, 2012 at 07:26 UTC
    Here what i get with perl-stacktrace:
    root@elgato:/etc# perl-stacktrace 9366 [Thread debugging using libthread_db enabled] 0x00007f7ba19bd500 in __nanosleep_nocancel () at ../sysdeps/unix/sysca +ll-template.S:82 82 ../sysdeps/unix/syscall-template.S: No such file or directory. in ../sysdeps/unix/syscall-template.S /tmp/3c5eHcBTdw.gdb:1761: Error in sourced command file: Cannot access memory at address 0x1
    What does that mean?

      It might be that App::Stacktrace doesn't work with Coro. Or it might just be some other reason it doesn't work in your particular environment.

      The documentation for App::Stacktrace immediately mentions three options. If one were actually curious about what was going on, every one of those three options looks like something one would try.

      - tye        

        This is debug by strace last calls:
        rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGCHLD, NULL, {SIG_DFL, [], 0}, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 nanosleep({1211417888, 0}, {1211354002, 168413065}) = ? ERESTART_RESTA +RTBLOCK (To be restarted) --- SIGWINCH (Window changed) @ 0 (0) --- restart_syscall(<... resuming interrupted call ...>) = ? ERESTART_REST +ARTBLOCK (To be restarted) --- SIGWINCH (Window changed) @ 0 (0) --- restart_syscall(<... resuming interrupted call ...>
        What does that mean? What to look for? Something with thread sor ...? There is a usleep command after my coro-using function to sleep, and as i see there's a work after thread execution and then there's a usleep, so it's the last in trace (nanosleep ...)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://989756]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (9)
As of 2015-07-04 10:56 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (59 votes), past polls