[Bug 379780] Re: High cpu usage after upgrade to 141-1.1

[Mark James]

I think I am experiencing this bug also. For me, it seems like udev
keeps taking more and more memory, and the main CPU issue is swapping.
It caused a system with 1 GB of memory to become very slow.

Linux tiger 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC
2009 x86_64 GNU/Linux

(I have another system running 32-bit karmic and I have not seen the
issue there, at least with the most recent update to udev.

Stopping udev after the boot process is the only thing I've found that
really works.

Possibly part of this: "grep udev /var/log/messages" includes:

Nov 15 07:42:25 tiger kernel: [31726.790151] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:42:26 tiger kernel: [31726.790162] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 07:43:23 tiger kernel: [31790.372717] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:43:26 tiger kernel: [31790.372729] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 07:45:45 tiger kernel: [31935.006152] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:45:45 tiger kernel: [31935.006163] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 07:46:39 tiger kernel: [31989.546806] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:46:39 tiger kernel: [31989.546819] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 07:47:52 tiger kernel: [32062.134996] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:47:53 tiger kernel: [32062.135007] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 07:48:43 tiger kernel: [32111.153600] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:48:46 tiger kernel: [32111.153611] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 07:57:54 tiger kernel: [32660.825587] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:57:54 tiger kernel: [32660.825598] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 07:59:40 tiger kernel: [32767.319352] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 07:59:44 tiger kernel: [32767.319357] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 08:01:19 tiger kernel: [32861.030103] udevd: page allocation failure. order:3, mode:0x8020
Nov 15 08:01:19 tiger kernel: [32861.030115] Pid: 498, comm: udevd Tainted: P        W  2.6.31-14-generic #48-Ubuntu
Nov 15 08:08:10 tiger kernel: [33274.882455] udevd: page allocation failure. order:3, mode:0x8020

-- 
High cpu usage after upgrade to 141-1.1
https://bugs.launchpad.net/bugs/379780
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