LI Xin wrote:

My ktrace/kdump output is huge. Here is a typical excerpt:

 44146 imap     0.005657 CALL  gettimeofday(0x80d00a0,0x80d00a8)
 44146 imap     0.005661 RET   gettimeofday 0
 44146 imap     Events dropped.
 44146 imap     0.005667 CALL  kevent(0x5,0,0,0xbfbfe890,0x1,0xbfbfe888)
 44146 imap     0.005671 RET   kevent 1
 44146 imap     0.005674 CALL  gettimeofday(0xbfbfe8f0,0)
 44146 imap     0.005677 RET   gettimeofday 0
 44146 imap     0.005680 CALL  kevent(0x4,0,0,0x80df000,0x4,0xbfbfe8e8)
 44146 imap     0.005683 RET   kevent 1
 44146 imap     0.005686 CALL  gettimeofday(0x80d00a0,0x80d00a8)
 44146 imap     0.005689 RET   gettimeofday 0
 44146 imap     0.005692 CALL  gettimeofday(0x80d00a0,0x80d00a8)
 44146 imap     0.005695 RET   gettimeofday 0
 44146 imap     0.005697 CALL  kevent(0x5,0,0,0xbfbfe890,0x1,0xbfbfe888)
 44146 imap     0.005701 RET   kevent 1
 44146 imap     0.005704 CALL  gettimeofday(0xbfbfe8f0,0)
 44146 imap     0.005708 RET   gettimeofday 0
 44146 imap     0.005710 CALL  kevent(0x4,0,0,0x80df000,0x4,0xbfbfe8e8)
 44146 imap     0.005713 RET   kevent 1
 44146 imap     0.005716 CALL  gettimeofday(0x80d00a0,0x80d00a8)
 44146 imap     0.005720 RET   gettimeofday 0
 44146 imap     0.005722 CALL  gettimeofday(0x80d00a0,0x80d00a8)
 44146 imap     0.005725 RET   gettimeofday 0
 44146 imap     0.005728 CALL  kevent(0x5,0,0,0xbfbfe890,0x1,0xbfbfe888)
 44146 imap     Events dropped.
 44146 imap     0.005763 RET   kevent 1
 44146 imap     Events dropped.
 44146 imap     0.005768 RET   gettimeofday 0
 44146 imap     0.005771 CALL  kevent(0x4,0,0,0x80df000,0x4,0xbfbfe8e8)
 44146 imap     0.005774 RET   kevent 1
 44146 imap     0.005777 CALL  gettimeofday(0x80d00a0,0x80d00a8)
 44146 imap     0.005780 RET   gettimeofday 0
 44146 imap     0.005782 CALL  gettimeofday(0x80d00a0,0x80d00a8)
 44146 imap     0.005786 RET   gettimeofday 0
 44146 imap     0.005789 CALL  kevent(0x5,0,0,0xbfbfe890,0x1,0xbfbfe888)
 44146 imap     0.005793 RET   kevent 1
 44146 imap     0.005795 CALL  gettimeofday(0xbfbfe8f0,0)
 44146 imap     0.005798 RET   gettimeofday 0
 44146 imap     0.005800 CALL  kevent(0x4,0,0,0x80df000,0x4,0xbfbfe8e8)
 44146 imap     Events dropped.


I haven't been able to get a .core file yet. More info as I catch it...


Er...  EPERM here is not normal here.  Is there any log indicating some
problem when this occour?

Cheers,

Sorry, EPERM? Where do you see that? What does it mean.

As for logs, the only errors I see (on a daily basis, though) are:

+pid 42498 (imap), uid 1016: exited on signal 11
+pid 38323 (imap), uid 1016: exited on signal 11
+pid 43138 (imap), uid 1016: exited on signal 11
+pid 43135 (imap), uid 1016: exited on signal 11
+pid 43804 (imap), uid 1016: exited on signal 11
+pid 38340 (imap), uid 1016: exited on signal 11

Last night, I got this:

+Out of ktrace request objects.
+pid 45376 (imap), uid 1016: exited on signal 11
+pid 45403 (imap), uid 1016: exited on signal 11
+pid 45518 (imap), uid 1016: exited on signal 11
+pid 46201 (imap), uid 1016: exited on signal 11
+pid 47169 (imap), uid 1016: exited on signal 11
+pid 47197 (imap), uid 1016: exited on signal 11

And dovecot just died completely. I restarted it this morning.

Hope that helps track this down.

--Paul