oops at reboot/shutdown in device_shutdown

[Axel Scheepers <ascheepers@vianetworks.nl>]

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Hi All,

I don't know if this is the right list to report this, if not excuse me
for posting.
Since kernel 2.6.16 I experience panics on reboot/shutdown in
device_shutdown on my dell laptop (pentium-m).

I've fixed this by commenting all references to device_shutdown in
kernel/sys.c which solves the problem for me, strange thing however is
that this machine is the only one I can reproduce this, both a dual
athlon and several pentium III machines run fine with the latest 2.6.16.7

Here's the patch to fix it in case someone else experiences the same
problems but I wonder what could cause this and if disabling
device_shutdown as I did could cause any problems?
(I'm not subscribed to this list, please Cc me)

Patch:
- --- sys.c       2006-04-18 15:55:09.858532000 +0200
+++ ../linux/kernel/sys.c       2006-04-18 15:10:22.768255500 +0200
@@ -394,7 +394,9 @@
 {
        notifier_call_chain(&reboot_notifier_list, SYS_RESTART, cmd);
        system_state = SYSTEM_RESTART;
+        /* don't shutdown devices
        device_shutdown();
+        */
 }

 /**
@@ -445,7 +447,9 @@
        notifier_call_chain(&reboot_notifier_list,
                (state == SYSTEM_HALT)?SYS_HALT:SYS_POWER_OFF, NULL);
        system_state = state;
+        /* don't shutdown devices
        device_shutdown();
+        */
 }
 /**
  *     kernel_halt - halt the system

- --- [snip] ---


Kind regards,

Axel Scheepers


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