Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.
First Last Prev Next    This bug is not in your last search results.
Bug 44021 - hangs on warm reboot
hangs on warm reboot
Status: CLOSED WONTFIX
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
7.1
i586 Linux
medium Severity medium
: ---
: ---
Assigned To: Arjan van de Ven
Brock Organ
:
Depends On:
Blocks:
  Show dependency tree / graph
 
Reported: 2001-06-09 03:17 EDT by Marco Bertola
Modified: 2007-04-18 12:33 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2003-06-08 16:47:57 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

  None (edit)
Description Marco Bertola 2001-06-09 03:17:10 EDT 
From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.4.2-2 i586)

Description of problem:
The machine (Compaq Presario 1255, AMD K6-2, 333Mhz 64mb) hangs AFTER a
warm reboot.
I.E. the kernel stops everything, no errors are encountered. After the
message 
Please standby.[...]
the screen goes blank (as normal) but then the graphic lilo is spoiled
(black dots everywhere).  After 2-3 secs. the machine starts loading the
kernel, the console is also spoiled (strange characters) and freezes
shortly after writing 
Booting kernel [or whatever, I don't remember].
The only solution is a hard boot.

I have tried to pass the options reboot=c (and also h,b,w) but no changes.
The problem occurs when rebooting from any runlevel (i.e. it is not a X
problem, should be the kernel).
Unfortunately there are no error messages in any of the logs.


How reproducible:
Always

Steps to Reproduce:
1.Turn on
2.Log in as root
3.shutdown -r now (or ctrl+alt+del at any stage)
	

Actual Results:  The machine hangs AFTER reboot.

Additional info:
Comment 1 Arjan van de Ven 2001-06-09 06:30:30 EDT 
This sounds like a bios bug.
Could you try passing "apm=realmode" to the lilo prompt of the "first" boot (eg
the boot where you type reboot) ?
Comment 2 Marco Bertola 2001-06-11 01:09:37 EDT 
I tried the suggestion apm=realmode but no difference.
I have recompiled disabling the kernel hacking options (Memory mapper I/O
debugging and Magic SysRq Key)  and the result are somewhat encouraging and
confusing.

1) Now the new kernel can safely warm reboot (wreboot) from runlevel 1 BUT NOT
runlevel 3.
2) For some reason (!!?) now also the old kernel can reboot from runlevel 1 (and
not from runlevel 3 or higher). Maybe the bug is in some module.
Did I do correctly? 
make mrproper; make menuconfig (using
/usr/src/linux2.4/config/kernel-2.4.2.i586.config); make
dep; make bzImage; make modules; make modules_install, copy the image in
/boot/mykernel, added to lilo.conf,  lilo.
For some strange reason it still complained about unresolved symbols until I
copied /usr/src/linux-2.4/System.map  in /boot/System.map.mykernel and changed
the symlink; but this is never told in any howto (maybe I am confused; but I am
no geek, I just read the howtos!).

3) I tried to enter Interactive mode and excluding everything I seem to be able
to wreboot (both kernels).
4) I tried to exclude only apmd but doesn't solve.
[5) For information, even if I abort installation from cdrom at any early stage
and wreboot, the problem persists.]

Very depressing.
Thanks anyway 

P.S.
(I'll probably revert to 7.0 because also rp3 doesn't work as it should; 
maybe is only my impression but I get more problems with the latest
distributions (from 5.1 on))
Comment 3 Alan Cox 2003-06-08 16:47:57 EDT 
Closing out as a BIOS issue, not something we could fix
Note You need to log in before you can comment on or make changes to this bug.
First Last Prev Next    This bug is not in your last search results.