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Description of problem: I tried first time to make power off to work on my SMP machine (ASUS P3C-D, Dual PIII 750MHz, 512 MB RDRAM). I added apm=power-off to grup.conf. When I try to boot the kernel freezes totally after following lines on terminal: apm: BIOS version 1.2 Flags 0x03 (Driver version 1.14) apm: disabled -APM is not SMP safe (power off active). This happens both with original and errata 2.4.9 kernel. Another problem: When I booted my box after the frozed boot-up, the fsck was the same slow check during next boot as with ext2. (Just double-checked /proc/mounts: all ext3.) Only non-standard procedure during boot was editing the boot command inside grub to boot without the apm=... Best regards, Jouni Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Add apm=power-off to boot command in grub.conf (or lilo.conf) 2. Boot with same hardware as I have.. 3. Actual Results: kernel freezes Expected Results: normal boot. Additional info:
This looks like your bios is totally broken in this respect ;( This is not that uncommon, and is the reason poweroff is disabled by default on smp....