Re: [PATCH] Linux 0.01 disk lockup

Mikulas Patocka (
Thu, 27 Sep 2001 18:07:34 +0200 (CEST)

> > Linux 0.01 has a bug in disk request sorting - when interrupt
> > happens while sorting is active, the interrupt routine won't clear
> > do_hd - thus the disk will stay locked up forever.
> Er, why bother to fix bugs in such an ancient kernel, rather than
> upgrading to a more modern kernel (like 0.98:-)? It's like finding a
> bug in 2.3.30 and fixing it rather than grabbing 2.4.10 and seeing if
> the problem persists.

Well - why not? The disk interrupt locking algorithm in 0.01 is beautiful
(except for the bug - but it can be fixed). It's something you don't see
in 2.4.10 with __cli, __sti, __save_flags, __restore_flags everywhere. So
why not to post a bug report and patch for 10th anniversary of Linux?


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