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



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