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* [Bug general/4955] New: fhpd sets do not work with corefiles
@ 2007-08-23 21:00 pmuldoon at redhat dot com
2007-08-24 18:51 ` [Bug general/4955] " pmuldoon at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: pmuldoon at redhat dot com @ 2007-08-23 21:00 UTC (permalink / raw)
To: frysk-bugzilla
dead/LinuxHost, LinuxProc and LinuxTask export a fully threaded model as
demonstrated via fstack:
[pmuldoon@localhost bindir]$ ps -ax | grep 3219
3219 ? Sl 0:19 /usr/lib/firefox-2.0.0.5/firefox-bin
[pmuldoon@localhost bindir]$ ./fcore 3219
And doing a fstack correctly print all tasks in the backtrace:
[pmuldoon@localhost bindir]$ ./fstack core.3219
Task #3219
#0 0x00110402 in __kernel_vsyscall () from
#1 0x00000000 in [unknown] from Unknown
Task #3241
#0 0x00110402 in __kernel_vsyscall () from
#1 0x00000000 in [unknown] from Unknown
Task #3242
#0 0x00110402 in __kernel_vsyscall () from
#1 0x440fc48c in __pthread_cond_timedwait () from /lib/libpthread.so.0
#2 0x84ed66c6 in [unknown] from Unknown
#3 0x4276c1f4 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#4 0x84fe8f1c in [unknown] from Unknown
#5 0x84fe4f8b in [unknown] from Unknown
#6 0x84ee431d in [unknown] from Unknown
#7 0x440f844b in start_thread () from /lib/libpthread.so.0
#8 0x00000000 in [unknown] from Unknown
Task #3244
#0 0x00110402 in __kernel_vsyscall () from
#1 0x440fc206 in __pthread_cond_wait () from /lib/libpthread.so.0
#2 0x4276c286 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#3 0x00000000 in [unknown] from Unknown
Task #3245
#0 0x00110402 in __kernel_vsyscall () from
#1 0x440fc206 in __pthread_cond_wait () from /lib/libpthread.so.0
#2 0x4276c286 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#3 0x00000000 in [unknown] from Unknown
Task #3246
#0 0x00110402 in __kernel_vsyscall () from
#1 0x440fc206 in __pthread_cond_wait () from /lib/libpthread.so.0
#2 0x4276c286 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#3 0x00000000 in [unknown] from Unknown
Task #3250
#0 0x00110402 in __kernel_vsyscall () from
#1 0x440fc206 in __pthread_cond_wait () from /lib/libpthread.so.0
#2 0x4276c286 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#3 0x4276c2e7 in PR_Wait () from /usr/lib/libnspr4.so
#4 0x427eeea1 in PL_WaitForEvent () from /usr/lib/firefox-2.0.0.5/libxpcom_core.so
#5 0x84fe067d in [unknown] from Unknown
#6 0x00000000 in [unknown] from Unknown
However fhpd does not properly represent set information for a core file, so
thread switching is not supported:
[pmuldoon@localhost bindir]$ ./fhpd core.3219
Attached to core file: /home/pmuldoon/frysk_bin/frysk-core/frysk/bindir/core.3219
(fhpd) whichsets
Task 0.0 is in sets:
however doing the same for the live process:
[pmuldoon@localhost bindir]$ ./fhpd 3219
Attached to process 3219
(fhpd) whichsets
procs 1 tasks 7
Task 0.0 is in sets:
Task 0.1 is in sets:
Task 0.2 is in sets:
Task 0.3 is in sets:
Task 0.4 is in sets:
Task 0.5 is in sets:
Task 0.6 is in sets:
This bug in fhpd essentially limits inspection to the corefile main task
--
Summary: fhpd sets do not work with corefiles
Product: frysk
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: general
AssignedTo: frysk-bugzilla at sourceware dot org
ReportedBy: pmuldoon at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=4955
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^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug general/4955] fhpd sets do not work with corefiles
2007-08-23 21:00 [Bug general/4955] New: fhpd sets do not work with corefiles pmuldoon at redhat dot com
@ 2007-08-24 18:51 ` pmuldoon at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: pmuldoon at redhat dot com @ 2007-08-24 18:51 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From pmuldoon at redhat dot com 2007-08-24 18:51 -------
Looks like the original author of CoreCommand only account for one thread per
corefile.
2007-08-24 Phil Muldoon <pmuldoon@redhat.com>
* CoreCommand.java (handle): Build multi-threaded set.
This creates a multi-threaded set
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=4955
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2007-08-23 21:00 [Bug general/4955] New: fhpd sets do not work with corefiles pmuldoon at redhat dot com
2007-08-24 18:51 ` [Bug general/4955] " pmuldoon at redhat dot com
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