------- Comment From [email protected] 2016-03-22 10:23 EDT-------
Would you mind checking that patch:
diff -urN ltrace-0.7.3/sysdeps/linux-gnu/ppc/plt.c
ltrace-0.7.3.new/sysdeps/linux-gnu/ppc/plt.c
--- ltrace-0.7.3/sysdeps/linux-gnu/ppc/plt.c 2016-03-22 10:18:14.713800825
-0400
+++ ltrace-0.7.3.new/sysdeps/linux-gnu/ppc/plt.c 2016-03-22
10:14:59.565267626 -0400
@@ -782,7 +782,7 @@
/* In UNRESOLVED state, the RESOLVED_VALUE in fact contains
* the PLT entry value. */
if (value == libsym->arch.resolved_value)
- return CBS_CONT;
+ return CBS_STOP;
debug(DEBUG_PROCESS, "pid=%d PLT got resolved to value %#"PRIx64,
proc->pid, value);
This patch allows the following commands to pass:
* make check
=== Summary ===
# of expected passes 219
* ltrace ps, ltrace ls ---> +++ exited (status 0) +++
* ltrace make
make[1]: Leaving directory '/home/ubuntu/WORK/ltrace-0.7.3.new'
--- SIGCHLD (Child exited) ---
chdir("/home/ubuntu/WORK/ltrace-0.7.3.n"...) = 0
exit(0 <no return ...>
+++ exited (status 0) +++
------- Comment From [email protected] 2016-03-22 10:26 EDT-------
Changing state for patch testing
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https://bugs.launchpad.net/bugs/1547152
Title:
ltrace is throwing segfault while running any of the userspace command
Status in procps package in Ubuntu:
Incomplete
Bug description:
== Comment: #0 - Praveen K. Pandey <[email protected]> - 2016-01-25
01:18:25 ==
Hi ,
I Installed Ubuntu16.04 In PowerNV and try to run ltrace ls or
ltrace ps it will fail with segfault .
Reproducible Step :
1- Install Ubuntu16.04 in PowerNV or as KVM or as PowerVM
2- Install ltrace package
3- Try to run ltrace with any userspace utility like "ltrace ps"
Actual Result :
Throw Seg fault
Expected :
LOG
root@lep8d:~# uname -a
Linux lep8d 4.3.0-7-generic #18-Ubuntu SMP Tue Jan 19 15:47:35 UTC 2016
ppc64le ppc64le ppc64le GNU/Linux
root@lep8d:~#
root@lep8d:~# ltrace ps
__printf_chk(1, 0x3fffe4d40028, 0x3fffe4d40038, 0x3fffe4d400e0 <unfinished
...>
qsort(0x10017850, 0, 0, 0x3fffe4d400e0)
= <void>
__gmon_start__(0x3fffe4d4f8df, 47, 0, 0x3fff81c51d68)
= 0
ferror(0x6)
= 230428656
__libc_start_main(0x10017e10, 0x10017df8, 0x3fff81d68f48, 0x3fff81d68f38)
= 0x3fff81c1ccb0
readproctab3(0x10017e10, 24, 0x7000000000000000, 0x6c00000000000000)
= 0x1000dbc1040
uptime(0x3fffe4d3faf0, 0, 152, 103)
= 0x3fffe4d3faf0
__fpending(0x3fffe4d3faf8, 0, 152, 103)
= 0
strrchr("\037 !"#$%&'()*+,-./0123456789:;<=>"..., '\360')
= nil
escape_command(0x10030f50, 0x3fffe4d3f968, 0, 8)
= 0
setlocale(LC_NUMERIC,
"hijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207"...)
= nil
select(1, 0x40087468, 0x3fffe4d3fa00, 0)
= 1
__xstat(268534584, "\017", 0x13)
= 0
strncmp("", "unknown", 7)
= -455870136
sigfillset(~<1,3,7-8,12,15,18,20,23-24,28,31,36,39,43,47-48,52,55-63>)
= 230428768
getpagesize()
= 6
meminfo(0, 0x100182d0, 0, 0)
= 0
getpagesize( <unfinished ...>
__stack_chk_fail(0, 0x100182d0, 0, 0 <no return ...>
--- SIGSEGV (Segmentation fault) ---
strncpy(0, "Signa", 5)
= 0x10017da8
dlerror()
= "SEGV"
strcmp("\206 \255\373",
"\001\002\003\004\005\006\a\b\t\n\v\f\r\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037
"...Signal 11 (SEGV) caught by ps (procps-ng version 3.3.10).
) = 58
readtask(0, 0, 0x10017de8, 66ps:display.c:66: please report this bug
)
= 0
__snprintf_chk(11, 0, 0x3fff81c5175b, 0)
= 0x10003e90
time(0x10003e90)
= 30039
fork()
= 0
unexpected breakpoint at 0x3fff81b339a4
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++
root@lep8d:~#
== Comment: #7 - Thierry Fauck <[email protected]> - 2016-02-17
14:11:52 ==
The problem is related to procps-ng 3.3.10
Upgrade to procps-ng 3.3.11 solves the issue
Going to Mirror and ask Canonical to advise.
== Comment: #9 - Thierry Fauck <[email protected]> - 2016-02-17
14:13:10 ==
This bugs is linked to procps-ng 3.3.10 known as having some issues. Is
upgrade to 3.3.11 an option ?
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