Some have experienced this problem under 10.04, but not me. On my machine
(Thinkpad X200, Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz) powertop was
working fine on 10.04.
After installation of 11.04 powertop goes crazy on my machine, too.
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I have this issue with Lucid 64 bit on a lenovo T410 with core i7. I
execute 'sudo powertop' and a couple of seconds later the only thing on
the screen is the mouse cursor and the computer freezes.
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The core dump is because of the assertion failure. Somehow the
processing of /proc/timer_stats has broken. I can't see anything obvious
as to why. I'd suggest running it under valgrind and seeing if that
throws up any warnings.
I have seen some other interesting core dumps on 10.04 in various
Here is a coredump and some analysis with gdb
Core was generated by `./powertop'.
Program terminated with signal 6, Aborted.
#0 0x7f7f1f7f7a75 in *__GI_raise (sig=value optimized out) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
64 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such
I have the following pattern.
-O0, -O3: no failing assert
-O1, -O2: failing assert
But no apparent reason since -O3 is a superset of -O2
gcc -c -Q -O3 --help=optimizers /tmp/O3-opts
gcc -c -Q -O2 --help=optimizers /tmp/O2-opts
diff /tmp/O2-opts /tmp/O3-opts | grep enabled
I could not reproduce the situation that triggers the assert.
I have cloned the git repo
git clone git://git.moblin.org/powertop
And it is the same, always in the root account.
I have generated a coredump, but optimizations prevent to read some values.
Extrangely enough, putting in the Makefile
'sudo powertop' crashes on lucid 64bit (both with/without power cord
attached). The system is a thinkpad T410 (intel i5). No crash if run
without root privileges.
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powertop: powertop.c:113: push_line_pid: Assertion `strlen(string) 0' failed.
https://bugs.launchpad.net/bugs/554983
You
For me, it usually happens when powertop is in the background. I've
also had it happen when opening a new tab in terminator,
** Changed in: powertop (Ubuntu)
Status: New = Confirmed
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powertop: powertop.c:113: push_line_pid: Assertion `strlen(string) 0' failed.
I usually see this with powertop when I plug the power cable in on a
Lucid installation on Sony Vaio Z790 (core 2 duo) as wel.
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powertop: powertop.c:113: push_line_pid: Assertion `strlen(string) 0' failed.
https://bugs.launchpad.net/bugs/554983
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** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/43048248/Dependencies.txt
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powertop: powertop.c:113: push_line_pid: Assertion `strlen(string) 0' failed.
https://bugs.launchpad.net/bugs/554983
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