This is the mail archive of the systemtap@sourceware.org mailing list for the systemtap project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[Bug uprobes/15972] New: core dump with process probes


https://sourceware.org/bugzilla/show_bug.cgi?id=15972

            Bug ID: 15972
           Summary: core dump with process probes
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: uprobes
          Assignee: systemtap at sourceware dot org
          Reporter: mjw at redhat dot com

Linux version 3.10.11-200.fc19.x86_64
(mockbuild@bkernel01.phx2.fedoraproject.org) (gcc version 4.8.1 20130603 (Red
Hat 4.8.1-1) (GCC) ) #1 SMP Mon Sep 9 13:03:01 UTC 2013
Command line: BOOT_IMAGE=/vmlinuz-3.10.11-200.fc19.x86_64
root=UUID=4f86948d-fc04-4940-8f90-e55ac67bf69c ro rd.md=0 rd.lvm=0 rd.dm=0
rd.luks=0 vconsole.keymap=us rhgb quiet LANG=en_US.UTF-8

$ stap -k -v -e 'probe
process("/usr/lib64/libglib-2.0*").function("g_main_context_iterate*").call {
printf("%d %s call\n", pid(), execname()); }'
Pass 1: parsed user script and 106 library script(s) using
226392virt/41848res/3112shr/39532data kb, in 220usr/20sys/820real ms.
Pass 2: analyzed script: 2 probe(s), 2 function(s), 2 embed(s), 0 global(s)
using 387808virt/49920res/5456shr/45028data kb, in 80usr/550sys/9568real ms.
Pass 3: translated to C into "/tmp/stapYViNMv/stap_1284_src.c" using
385332virt/49760res/5416shr/45028data kb, in 20usr/50sys/65real ms.
Pass 4: compiled C into "stap_1284.ko" in 1750usr/350sys/4873real ms.
Pass 5: starting run.
318 accounts-daemon call
318 accounts-daemon call
1123 gdbus call
1123 gdbus call
1056 upowerd call
1056 upowerd call
306 firewalld call
306 firewalld call
958 gdbus call
958 gdbus call
935 gdbus call
935 gdbus call
396 modem-manager call
396 modem-manager call
368 NetworkManager call
368 NetworkManager call
971 gnome-session call
971 gnome-session call
360 polkitd call
360 polkitd call
1034 gdbus call
1034 gdbus call
1046 gdbus call
1046 gdbus call
1125 gdbus call
1125 gdbus call
920 gdm call
920 gdm call
1026 gdbus call
1026 gdbus call
1161 gdbus call
1161 gdbus call
1516 gdbus call
1516 gdbus call
1522 gdbus call
1522 gdbus call
1526 gdm call
1526 gdm call
1530 gdbus call
1530 gdbus call
1534 gdbus call
1534 gdbus call

<... then some processes start to core dump ...>

dmesg output:

[  182.717920] Kprobes globally unoptimized
[  182.719609] stap_1482: module verification failed: signature and/or required
key missing - tainting kernel
[  182.757338] stap_1482: systemtap: 2.3/0.156, base: ffffffffa032c000, memory:
58data/40text/8ctx/2058net/33alloc kb, probes: 2
[  183.730127] traps: accounts-daemon[318] general protection ip:7fffffffe080
sp:7fff37c523e0 error:0
[  184.471758] traps: gdbus[1137] general protection ip:7fffffffe080
sp:7f6d92cf4bc0 error:0
[  184.471932] traps: upowerd[1056] general protection ip:7fffffffe080
sp:7fff932351b0 error:0
[  184.472203] traps: firewalld[306] general protection ip:7fffffffe080
sp:7fff80710490 error:0
[  184.472461] traps: gdbus[959] general protection ip:7fffffffe080
sp:7f3fa84ead80 error:0
[  184.473344] traps: gdbus[936] general protection ip:7fffffffe080
sp:7fc9319b9dc0 error:0
[  184.473416] traps: modem-manager[396] general protection ip:7fffffffe080
sp:7fffbd866d50 error:0
[  184.473447] Pid 396(modem-manager) over core_pipe_limit
[  184.473448] Skipping core dump
[  184.474172] traps: NetworkManager[368] general protection ip:7fffffffe080
sp:7fff0a3f65f0 error:0
[  184.474200] Pid 368(NetworkManager) over core_pipe_limit
[  184.474201] Skipping core dump
[  184.474808] traps: gnome-session[971] general protection ip:7fffffffe080
sp:7fff4f9c4bf0 error:0
[  184.475138] Pid 971(gnome-session) over core_pipe_limit
[  184.475140] Skipping core dump
[  184.476604] Pid 1034(gdbus) over core_pipe_limit
[  184.476606] Skipping core dump
[  184.477161] Pid 1046(gdbus) over core_pipe_limit
[  184.477162] Skipping core dump
[  184.481080] Pid 1125(gdbus) over core_pipe_limit
[  184.481083] Skipping core dump

All general protection ip addresses look the same.

-- 
You are receiving this mail because:
You are the assignee for the bug.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]