6cc7361440
. Print message at script start telling how to get te summary
. Print the syscall name using the audit-lib-python package, if
installed
. Print the errno string
. Accept both pid (if numeric) or COMM name
Now it looks like this:
[root@emilia ~]# perf trace failed-syscalls-by-pid
Press control+C to stop and show the summary
^C
syscall errors:
comm [pid] count
------------------------------ ----------
automount [1670]
syscall: futex
err = ETIMEDOUT 39
irqbalance [1462]
syscall: openat
err = ENOENT 4
perf [7888]
syscall: lseek
err = ESPIPE 1
syscall: open
err = ENOENT 24
perf [7889]
syscall: ioctl
err = EINVAL 1
syscall: readlink
err = EINVAL 2
syscall: open
err = ENOENT 389
syscall: stat
err = ENOENT 141
syscall: lseek
err = ESPIPE 3
[root@emilia ~]#
[root@emilia ~]# perf trace failed-syscalls-by-pid 1670
Press control+C to stop and show the summary
^C
syscall errors:
comm [pid] count
------------------------------ ----------
automount [1670]
syscall: futex
err = ETIMEDOUT 2
[root@emilia ~]#
[root@emilia ~]#
[root@emilia ~]#
[root@emilia ~]# perf trace failed-syscalls-by-pid automount
Press control+C to stop and show the summary
^C
syscall errors for automount:
comm [pid] count
------------------------------ ----------
automount [1669]
syscall: futex
err = ETIMEDOUT 1
automount [1670]
syscall: futex
err = ETIMEDOUT 5
[root@emilia ~]#
Cc: David S. Miller <davem@davemloft.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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