La commande pstack(1) imprime une trace de pile d'un processus en cours d'exécution. Suivez les étapes ci-dessous pour l'installer sur un système CentOS/RHEL.
Quel paquet fournit la commande pstack
Pour CentOS/RHEL 5
Le paquet pstack peut être installé avec :
# yum install pstack
Pour CentOS/RHEL 6,7
Dans CentOS/RHEL 6/7, l'outil pstack est fourni par gdb forfait. Pour installer gdb, veuillez faire :
# yum install gdb
Le paquet gdb inclura les commandes gstack et pstack. Par exemple :
# rpm -ql gdb-7.2-92.el6.x86_64 | egrep "pstack|gstack" /usr/bin/gstack /usr/bin/pstack
Utilisation des commandes
Vous pouvez ensuite l'appeler soit "pstack ' ou 'gstack ‘.
# gstack Usage: gstack [process-id]
# pstack Usage: pstack [process-id]
Exemples
# gstack 21142 Thread 2 (Thread 0x7f1b3181b700 (LWP 21148)): #0 0x0000003dfaadf3e7 in ppoll () from /lib64/libc.so.6 #1 0x0000003a4f43298e in pa_rtpoll_run () from /usr/lib64/libpulsecore-0.9.21.so #2 0x00007f1b27bfb0a7 in ?? () from /usr/lib64/pulse-0.9.21/modules/module-null-sink.so #3 0x00000032b12389b8 in ?? () from /usr/lib64/libpulsecommon-0.9.21.so #4 0x0000003dfae079d1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003dfaae89dd in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f1b376ad740 (LWP 21142)): #0 0x0000003dfaadf3e7 in ppoll () from /lib64/libc.so.6 #1 0x00000032b161cb87 in pa_mainloop_poll () from /usr/lib64/libpulse.so.0 #2 0x00000032b161dec9 in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0 #3 0x00000032b161df80 in pa_mainloop_run () from /usr/lib64/libpulse.so.0 #4 0x000000000040a927 in main ()
# pstack 21142 Thread 2 (Thread 0x7f1b3181b700 (LWP 21148)): #0 0x0000003dfaadf3e7 in ppoll () from /lib64/libc.so.6 #1 0x0000003a4f43298e in pa_rtpoll_run () from /usr/lib64/libpulsecore-0.9.21.so #2 0x00007f1b27bfb0a7 in ?? () from /usr/lib64/pulse-0.9.21/modules/module-null-sink.so #3 0x00000032b12389b8 in ?? () from /usr/lib64/libpulsecommon-0.9.21.so #4 0x0000003dfae079d1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003dfaae89dd in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f1b376ad740 (LWP 21142)): #0 0x0000003dfaadf3e7 in ppoll () from /lib64/libc.so.6 #1 0x00000032b161cb87 in pa_mainloop_poll () from /usr/lib64/libpulse.so.0 #2 0x00000032b161dec9 in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0 #3 0x00000032b161df80 in pa_mainloop_run () from /usr/lib64/libpulse.so.0 #4 0x000000000040a927 in main ()