[1980] in linux-scsi channel archive
scsi.c module patch
daemon@ATHENA.MIT.EDU (Andrea Arcangeli)
Wed Jun 11 18:56:24 1997
Date: Thu, 12 Jun 1997 00:53:52 +0200 (CEST)
From: Andrea Arcangeli <arcangeli@mbox.queen.it>
To: linux-scsi@vger.rutgers.edu
I have fixed the bug that causes my kernel to crash doing the script:
#!/bin/sh
while :; do
modprobe ppa
modprobe -r ppa
done
The crash was caused from the execution of the scsi_main_timeout function
by the SCSI_TIMER when the module was just cleared from memory.
So I have stopped the SCSI_TIMER before clear the module from memory.
--- /usr/src/linux/drivers/scsi/scsi.c Wed Jun 11 19:19:36 1997
+++ linux/drivers/scsi/scsi.c Wed Jun 11 19:19:00 1997
@@ -12,6 +12,7 @@
* Rik Faith <faith@cs.unc.edu>
* Tommy Thorn <tthorn>
* Thomas Wuensche <tw@fgb1.fgb.mw.tu-muenchen.de>
+ * Andrea Arcangeli <arcangeli@mbox.queen.it>
*
* Modified by Eric Youngdale eric@aib.com to
* add scatter-gather, multiple outstanding request, and other
@@ -3508,6 +3509,7 @@
void cleanup_module( void)
{
+ timer_active &= ~(1 << SCSI_TIMER);
#if CONFIG_PROC_FS
proc_scsi_unregister(0, PROC_SCSI_SCSI);
Bye!
Andrea Arcangeli
arcangeli@mbox.queen.it
HomePage: http://www.imola.queen.it/user/arcangeli/
Debian Mirror: ftp://dida43.deis.unibo.it/pub/debian/
Debian GNU
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