[Pkg-xfce-devel] Bug#478566: Bug#478566: thunar: thunar runs amok on /proc, wasting lots of CPU time

[Yves-Alexis Perez]

severity 478566 normal
tag 478566 unreproducible
thanks

On mar, 2008-04-29 at 21:36 +0200, Hilko Bengen wrote:

> While moving a few empty files from my home directory to the trash, I
> noticed that thunar became unresponsive to user input and didn't even
> redraw its window.

Hmh, moving in thunar is sure slower than using mv, but...
> 
> Attaching strace to the process revealed the following:
> 
>         access("/proc/net/packet", X_OK)        = -1 EACCES (Permission denied)
>         lstat64("/proc/net/igmp6", {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         access("/proc/net/igmp6", R_OK)         = 0
>         open("/proc/net/igmp6", O_RDONLY|O_LARGEFILE) = 11
>         fgetxattr(11, "user.mime_type", 0x0, 0) = -1 EOPNOTSUPP (Operation not supported)
>         fstat64(11, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         read(11, "", 0)                         = 0
>         close(11)                               = 0
>         access("/proc/net/igmp6", X_OK)         = -1 EACCES (Permission denied)
>         lstat64("/proc/net/mcfilter6", {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         access("/proc/net/mcfilter6", R_OK)     = 0
>         open("/proc/net/mcfilter6", O_RDONLY|O_LARGEFILE) = 11
>         fgetxattr(11, "user.mime_type", 0x0, 0) = -1 EOPNOTSUPP (Operation not supported)
>         fstat64(11, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         read(11, "", 0)                         = 0
>         close(11)                               = 0
>         access("/proc/net/mcfilter6", X_OK)     = -1 EACCES (Permission denied)
>         lstat64("/proc/net/raw6", {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         access("/proc/net/raw6", R_OK)          = 0
>         open("/proc/net/raw6", O_RDONLY|O_LARGEFILE) = 11
>         fgetxattr(11, "user.mime_type", 0x0, 0) = -1 EOPNOTSUPP (Operation not supported)
>         fstat64(11, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         read(11, "", 0)                         = 0
>         close(11)                               = 0
>         access("/proc/net/raw6", X_OK)          = -1 EACCES (Permission denied)
>         lstat64("/proc/net/tcp6", {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         access("/proc/net/tcp6", R_OK)          = 0
>         open("/proc/net/tcp6", O_RDONLY|O_LARGEFILE) = 11
>         fgetxattr(11, "user.mime_type", 0x0, 0) = -1 EOPNOTSUPP (Operation not supported)
>         fstat64(11, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
>         read(11, "", 0)                         = 0
>         close(11)                               = 0
> 
> [ad nauseam]

Are you sure this is thunar process? Is your homedire on nfs or
something?

I sure can't reproduce this.

> 
> Apparently, thunar crawled /proc in a futile attempt to fetch that
> "user.mime_type" attribute from every "file" it finds there. Because
> thunar becomes unresponsive for lengthy periods of time, it becomes
> quite unresponsive.

Hmhm, I can understand that. What I fail to see is why it tries to do
some stuff in /proc. You weren't trying to delete stuff in /proc, do
you?

Cheers,
-- 
Yves-Alexis
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