Re: Bug in gmixvm

On Tue, Sep 29, 2009 at 1:18 PM, Jose A. Ortega Ruiz <[email protected]> wrote:
>
> Hi Stjepan,
>
> Stjepan Gros <[email protected]> writes:
>
>> Hi!
>>
>> I'm trying to package mdk for Fedora and I'm almost there. :)
>
> Excellent!
>
>> The problem is that after running gmixvm it consumes much of disk and
>> CPU resources. I managed to find out that it's scanning the whole
>> directory tree (either /usr/bin or home directory, depending how it is
>> started).
>
> What are the two ways of starting gmixvm? Do you have the same problem
> starting (in a terminal) mixvm?

Yes, it is the same no matter if I start it from CLI or from a menu entry.

>> Attached is gdb stack trace. Do you know what could be the exact
>> problem?
>
> Hmmm... it's a bit difficult to tell, but i have a guess. It could be
> one of the gnome daemons looking for a path, or something like that. To
> check, could you edit ~/.mdk/gmixvm.config (creating it if necessary)
> and ensure that it contains the lines:
>
> Assembler=/usr/bin/mixasm -l %s
> Mixasm=/usr/bin/mixasm -l %s
> Editor=/usr/bin/xterm -e vi %s
>
> where, in all of them, the paths are to exisiting executables?

I added those lines to gmixvm.config (and created it) but it is still
scanning the /usr/bin directory. And just now I found out that it also
stat's/lstat's many other files of which some do not exist. Here are
some excerpts from the strace output:

access("/etc/fonts/conf.d/20-unhint-small-dejavu-lgc-sans.conf", R_OK) = 0
stat("/etc/fonts/conf.d/20-unhint-small-dejavu-lgc-sans.conf",
{st_mode=S_IFREG|0644, st_size=864, ...}) = 0
open("/etc/fonts/conf.d/20-unhint-small-dejavu-lgc-sans.conf", O_RDONLY) = 8
read(8, "<?xml version=\"1.0\" encoding=\"UTF"..., 8192) = 864
read(8, ""..., 8192)                    = 0
close(8)                                = 0

stat("/home/zavod/sgros/.thumbnails/normal/43e5d4fbf671883fe309ae41d335cd4d.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
stat("/home/zavod/sgros/.thumbnails/fail/gnome-thumbnail-factory/43e5d4fbf671883fe309ae41d335cd4d.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
lstat("/usr/bin/latencytest", {st_mode=S_IFREG|0755, st_size=110760, ...}) = 0
open("/usr/bin/latencytest", O_RDONLY)  = 13
read(13, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\2\0>\0\1\0\0\0\340\245@\0\0\0\0\0@"...,
4096) = 4096
close(13)                               = 0
stat("/home/zavod/sgros/.thumbnails/normal/a710091ca4edfb17e916eced9711f33f.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
stat("/home/zavod/sgros/.thumbnails/fail/gnome-thumbnail-factory/a710091ca4edfb17e916eced9711f33f.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
lstat("/usr/bin/pdftoppm", {st_mode=S_IFREG|0755, st_size=21448, ...}) = 0
open("/usr/bin/pdftoppm", O_RDONLY)     = 13
read(13, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\2\0>\0\1\0\0\0\340\22@\0\0\0\0\0@"...,
4096) = 4096
close(13)                               = 0
stat("/home/zavod/sgros/.thumbnails/normal/ffd35f2016dcc3c3e310a75b7eff6c09.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
stat("/home/zavod/sgros/.thumbnails/fail/gnome-thumbnail-factory/ffd35f2016dcc3c3e310a75b7eff6c09.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
lstat("/usr/bin/sbiload", {st_mode=S_IFREG|0755, st_size=18080, ...}) = 0
open("/usr/bin/sbiload", O_RDONLY)      = 13
read(13, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\2\0>\0\1\0\0\0\240\r@\0\0\0\0\0@"...,
4096) = 4096
close(13)                               = 0

open("/usr/bin/ntfsmove", O_RDONLY)     = 13
read(13, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\2\0>\0\1\0\0\0\320\24@\0\0\0\0\0@"...,
4096) = 4096
close(13)                               = 0
stat("/home/zavod/sgros/.thumbnails/normal/ae0e5905f16b8c56928372e0b9a5e39a.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
stat("/home/zavod/sgros/.thumbnails/fail/gnome-thumbnail-factory/ae0e5905f16b8c56928372e0b9a5e39a.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
lstat("/usr/bin/veusz_listen", {st_mode=S_IFREG|0755, st_size=1082, ...}) = 0
open("/usr/bin/veusz_listen", O_RDONLY) = 13
read(13, "#!/usr/bin/python\n\n#    Runs veus"..., 4096) = 1082
close(13)                               = 0
stat("/home/zavod/sgros/.thumbnails/normal/69d160f964a7fa71e2c3cfee29f449f6.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
stat("/home/zavod/sgros/.thumbnails/fail/gnome-thumbnail-factory/69d160f964a7fa71e2c3cfee29f449f6.png",
0x7fff82a91470) = -1 ENOENT (No such file or directory)
lstat("/usr/bin/lpq", {st_mode=S_IFLNK|0777, st_size=27, ...}) = 0

Stjepan

P.S. Bugzilla entry for Fedora package is here:

https://bugzilla.redhat.com/show_bug.cgi?id=520637

> Thanks!
> jao
> --
> Dealing with failure is easy: Work hard to improve. Success is also
> easy to handle: You've solved the wrong problem. Work hard to improve.
>  - Alan Perlis, Epigrams in Programing
>