[2.5.44] Poweroff after warm reboot
Hello,
If I reboot my laptop with kernel 2.5.44 (warm reboot), the machine reboots, loads the kernel, and then in the middle of the booting process powers off.
Doing an actual shutdown (poweroff) results in a clean boot next time.
This behaviour is not present with kernel 2.5.40.
The last message I'm able to see before the screen goes blank is something about serial io being detected/loaded.
Is this a known bug?
PC is a Dell Latitude CPI A XT 366. More info available if needed.
DK
Signature · 2 lines
It is the business of little minds to shrink. -- Carl Sandburg
Quoted 5 lines · DevilKin
Hello,
If I reboot my laptop with kernel 2.5.44 (warm reboot), the machine reboots, loads the kernel, and then in the middle of the booting process powers off.
Hmm... maybe it has something to do with ACPI ? Could you try booting the kernel after a warm reboot with ACPI disabled ?
An other thing I can think about is that a driver does odd things due to the fact that the hardware isn't reinitialized completely. See dmesg what driver comes after that serial driver and disable the serial driver and / or the other driver. See if this helps.
Jos
Quoted 9 lines · Jos Hulzink
Quoted 5 lines · DevilKin
Hello,
If I reboot my laptop with kernel 2.5.44 (warm reboot), the machine reboots, loads the kernel, and then in the middle of the booting process powers off.
Hmm... maybe it has something to do with ACPI ? Could you try booting the kernel after a warm reboot with ACPI disabled ?
It's APM, not ACPI (luckely :oP)
Quoted 5 lines
An other thing I can think about is that a driver does odd things due to the fact that the hardware isn't reinitialized completely. See dmesg what driver comes after that serial driver and disable the serial driver and / or the other driver. See if this helps.
Well, I'd first have to figure out what driver it is, since my screen goes entirely blank...
DK
Signature · 1 line
Darth Vader sleeps with a Teddywookie.
Quoted 4 lines · DevilKin
Quoted 3 lines · Jos Hulzink
Quoted 2 lines · DevilKin
Hello,
Quoted 8 lines
Quoted 6 lines
Quoted 3 lines
If I reboot my laptop with kernel 2.5.44 (warm reboot), the machine reboots, loads the kernel, and then in the middle of the booting process powers off.
Hmm... maybe it has something to do with ACPI ? Could you try booting the kernel after a warm reboot with ACPI disabled ?
It's APM, not ACPI (luckely :oP)
This problem is still present with 2.5.45 and 2.5.46.
DK
Signature · 1 line
"Kirk to Enterprise -- beam down yeoman Rand and a six-pack."
Quoted 10 lines · DevilKin
Hello,
If I reboot my laptop with kernel 2.5.44 (warm reboot), the machine reboots, loads the kernel, and then in the middle of the booting process powers off.
Doing an actual shutdown (poweroff) results in a clean boot next time.
Is this a known bug?
PC is a Dell Latitude CPI A XT 366. More info available if needed.
FWIW I have a very similar machine (its not in front of me unfortunately) that used to exhibit the same behavior under Win2k. I haven't been using it since I got into a position to put it back under Linux (the battery is shot - I was just using it to run software required by my old ISP) but I can give it a try if needed.
It was exactly as described, only under windows - the machine would reboot, bios go past, the initial boot menu would go, then partway though the color-bar boot screen it would just turn off.