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Description
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# uname -a
SunOS rampage 5.11 snv_66 i86pc i386 i86pc
With the following DTrace script -
#!/usr/sbin/dtrace -s
#pragma D option flowindent
pid$target:libgtk-x11-2.0.so.0.1000.12::entry {
}
pid$target:libgtk-x11-2.0.so.0.1000.12::return {
}
invoked with the following command -
# ./dtrace-script -Z -c 'zenity --about'
When you immediately see the 'matched 0 probes', ^C the execution, and it'll die with a segmentation fault, and resulting stack trace -
# pstack dtrace-core
core 'dtrace-core' of 7698: /usr/sbin/dtrace -s ./zenity.d -Z -c zenity --about
----------------- lwp# 1 / thread# 1 --------------------
d29fd129 __lwp_park (d28f2a00, 0, 82d1ca8, 0) + 19
d29f6124 slow_lock (d28f2a00, 82d1ca8, 0) + 40
d29f627b mutex_lock_impl (82d1ca8, 0) + 14b
d29f6362 mutex_lock (82d1ca8) + 1d
d2b59ed8 dt_proc_destroy (806b608, 82d1cf8) + bc
d2b5a832 dt_proc_hash_destroy (806b608) + 2e
d2b42f34 dtrace_close (806b608) + 128
08055868 main (6, 8047ab4, 8047ad0) + 1440
08052212 _start (6, 8047bba, 8047bc1, 8047bc4, 8047bcf, 8047bd2) + 7a
----------------- lwp# 2 / thread# 2 --------------------
d2b546ff dt_pid_get_pid (8b645795, 806b608, 0, 82d1890) + 23
d2b54adf dt_pid_create_probes_module (806b608, 82d1890) + 73
d2b593fd dt_proc_rdevent (806b608, 82d1890, d2b6fed8) + b5
d2b59034 dt_proc_bpmatch (806b608, 82d1890) + a0
d2b59bba dt_proc_control (8047858) + 36e
d29fce72 _thr_setup (d0bf0200) + 52
d29fd0d0 _lwp_start (d0bf0200, 0, 0, 0, 0, 0)
In the process of uploading a core file here -
http://www.gnome.org/~gman/dtrace-core
Should be available soon.
also seen on snv_69 64bit kernel amd64 box
seans:~/langs/d$ dtrace -Z -s gman1.d -c 'zenity --about'
dtrace: script 'gman1.d' matched 0 probes
^C
CPU FUNCTION
0 -> gtk_init
0 -> gtk_init_check
0 -> gtk_parse_args
0 -> gettext_initialization
0 <- gettext_initialization
0 -> check_setugid
0 <- check_setugid
0 -> gtk_get_option_group
0 -> gettext_initialization
0 <- gettext_initialization
0 <- gtk_get_option_group
0 -> pre_parse_hook
0 <- pre_parse_hook
0 -> post_parse_hook
0 -> gettext_initialization
0 <- gettext_initialization
0 -> gtk_type_init
0 -> gtk_object_get_type
0 <- gtk_object_get_type
0 <- gtk_type_init
0 -> _gtk_accel_map_init
0 <- _gtk_accel_map_init
0 -> _gtk_rc_init
0 -> gtk_rc_add_initial_default_files
0 -> gtk_rc_add_default_file
0 -> gtk_rc_add_initial_default_files
0 <- gtk_rc_add_initial_default_files
0 <- gtk_rc_add_default_file
0 -> gtk_rc_add_default_file
0 -> gtk_rc_add_initial_default_files
0 <- gtk_rc_add_initial_default_files
0 <- gtk_rc_add_default_file
0 <- gtk_rc_add_initial_default_files
0 -> gtk_rc_parse_string
0 <- gtk_rc_parse_string
0 <- _gtk_rc_init
0 <- post_parse_hook
0 <- gtk_parse_args
Segmentation Fault (core dumped)
seans:~/langs/d$
bash-3.00# pstack core.dtrace.6570.11850480
pstack: cannot examine core.dtrace.6570.11850480: no such process or core file
bash-3.00# pstack core.dtrace.6570.1185048065
core 'core.dtrace.6570.1185048065' of 6570: dtrace -Z -s gman1.d -c zenity -
-about
----------------- lwp# 1 / thread# 1 --------------------
fffffd7fff18b9d7 __lwp_park () + 17
fffffd7fff1841c6 mutex_lock_impl () + 116
fffffd7fff18425c mutex_lock () + c
fffffd7fff3305a4 dt_proc_destroy () + b4
fffffd7fff330f4c dt_proc_hash_destroy () + 2c
fffffd7fff319797 dtrace_close () + 117
000000000040729d main () + 164d
00000000004031cc ???????? ()
----------------- lwp# 2 / thread# 2 --------------------
fffffd7fff32b1a0 dt_pid_create_probes_module () + 50
fffffd7fff32fa32 dt_proc_rdevent () + b2
fffffd7fff32f664 dt_proc_bpmatch () + a4
fffffd7fff3301fb dt_proc_control () + 37b
fffffd7fff18b6e7 _thr_setup () + 67
fffffd7fff18b990 _lwp_start ()
bash-3.00#
fairly easy to reproduce.
core at /net/greyarea.ireland/export/home/sean/cores/core.dtrace.6570.1185048065.bz2
The final updated core (bad hotel connection) had the following pstack
core 'core' of 2791: /usr/sbin/dtrace -s ./dtrace-script -Z -c zenity --about
----------------- lwp# 1 / thread# 1 --------------------
d29fd129 __lwp_park (d28f2a00, 0, 8145c90, 0) + 19
d29f6124 slow_lock (d28f2a00, 8145c90, 0) + 40
d29f627b mutex_lock_impl (8145c90, 0) + 14b
d29f6362 mutex_lock (8145c90) + 1d
d2b59ed8 dt_proc_destroy (806b608, 82d08a0) + bc
d2b5a832 dt_proc_hash_destroy (806b608) + 2e
d2b42f34 dtrace_close (806b608) + 128
08055868 main (6, 8047aec, 8047b08) + 1440
08052212 _start (6, 8047bee, 8047bf5, 8047bf8, 8047c08, 8047c0b) + 7a
----------------- lwp# 2 / thread# 2 --------------------
d2b546ff dt_pid_get_pid (e374, 806b608, 0, 8145878) + 23
d2b54adf dt_pid_create_probes_module (806b608, 8145878) + 73
d2b593fd dt_proc_rdevent (806b608, 8145878, d2b6fed8) + b5
d2b59034 dt_proc_bpmatch (806b608, 8145878) + a0
d2b59bba dt_proc_control (8047888) + 36e
d29fce72 _thr_setup (d0bb0200) + 52
d29fd0d0 _lwp_start (d0bb0200, 0, 0, 0, 0, 0)
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