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Bug#468075: marked as done (sudo: system freeze)



Your message dated Fri, 4 Apr 2008 12:39:08 -0400
with message-id <20080404163908.GA5782@cetus>
and subject line Re: Bug#460194: this bug/#460194 - aptitude: freezes desktop for four seconds when launched with sudo
has caused the Debian Bug report #460194,
regarding sudo: system freeze
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
460194: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=460194
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: sudo
Version: 1.6.9p11-1+b1
Severity: normal

Hello,

When i run in a root shell "aptitude safe-upgrade", it works fine, no
freeze, aptitude outputs normally and immediately.

But if i do from my current user "sudo aptitude safe-upgrade", the
whole system freezes for 5s, then it unlocks and everything gets back
to normal.

vmstat 1 shows:

procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
 2  0   3116  59532 195516 505240    0    0    59   102  151  342 11  3 84  3
 0  0   3116  59532 195516 505240    0    0     0    92  165  720  8  1 90  1
 0  0   3116  59284 195516 505240    0    0     0     0  108  744 23  5 72  0
 0  0   3116  59408 195516 505240    0    0     0     0  120  438  3  1 96  0
16  0   3116  58160 195516 505240    0    0     0     0  120  187 83  3 14  0
17  0   3116  58036 195516 505240    0    0     0     0   86   98 99  1  0  0
20  0   3116  56176 195516 505240    0    0     0     0   86  117 98  2  0  0
21  0   3116  56176 195516 505240    0    0     0     0   91   85 100  0  0  0
21  0   3116  53936 195516 505240    0    0     0     0   86   94 90 10  0  0
21  0   3116  49720 195516 505240    0    0     0     0   86   84 93  7  0  0
 1  0   3116  49348 195516 505240    0    0     0   100  157  491 98  2  0  0
 1  0   3116  49348 195516 505240    0    0     0     0  113  543 97  3  0  0
 0  0   3116  59284 195516 505240    0    0     0     0  216 1038 21  3 76  0
 0  0   3116  59408 195516 505240    0    0     0     0  145 1139 26  7 67  0

The number of waiting processes is quite unusual :/

"sudo date" or "sudo sleep 5" don't freeze the system.

I don't know if this is sudo related or kernel bug, but i've only observed
it with sudo.

Thanks.

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: powerpc (ppc)

Kernel: Linux 2.6.24.2-ibook
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to fr_FR.UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages sudo depends on:
ii  libc6                         2.7-5      GNU C Library: Shared libraries
ii  libpam-modules                0.99.7.1-5 Pluggable Authentication Modules f
ii  libpam0g                      0.99.7.1-5 Pluggable Authentication Modules l

sudo recommends no packages.

-- no debconf information



--- End Message ---
--- Begin Message ---
Version: 2.6.24-5

On Fri, Apr 04, 2008 at 03:52:13PM +0200, Marcus Better wrote:
> Justin Pryzby wrote:
>> Could you test if this problem exists while running the latest kernel?
>> I think kernel 2.6.18 was ok, and upgrading to
>> linux-image-2.6.24-1-686_2.6.24-5 (from -4) seems to have resolved
>> this for me.
>
> I'm not seeing this on 2.6.25-rc7 anymore, not sure about 2.6.24 now.
Ok, I'm happy to consider this resolved (though I'd love to know the
details of what specifically changed..).


--- End Message ---

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