Distribution: Debian Sarge 3r1 Hardware Environment: MSI 875P mainboard I. Pentium4 2.6GHz. Nvidia MX400 VGA card. No extra hardware Problem Description: During the boot process when the io sheduler(s) were registered the system freez without any error messsage. I tried with the elevator= parameter in the lilo.conf but the result is the same.
This isn't related to the IO scheduler, but I forget what it is. Can you add `initcall_debug' to the kernel boot command line then send the last few lines of output?
Hi ! I added the initcall_debug to the kernel boot command line but the output is the same. The last lines are: io sheduler noop registered io sheduler anticipatory registered io sheduler deadline registered io sheduler cfq registered and nothing else. The system freez. I can reboot with only the reset button.
Please show us the last ten lines. You should get hundreds of lines of the form "Calling initcall 0x....". If you don't get that, you didn't set initcall_debug properly. We'd need to see the final such message.
Dear Jens Axboe, I tried now with the 'debug' command line parameter and I get the following few lines: Calling initcall 0xc0416b51 : noop_init+0x0/0x13() io sheduler noop registered Calling initcall 0xc0416b64 : as_init+0x0/0x78() io sheduler anticipatory registered Calling initcall 0xc0416bdc : deadline_init0x0/0x76() io sheduler deadline registered Calling initcall 0xc0416d24 : cfq_init+0x0/0x5e() io sheduler cfq registered Calling initcall 0xc020d8f6 : pci_init+0x0/0x3d() regards, Szabolcs Toth
argh, everyone's reporting this, and it's a USB problem but I forget what the workaround was. Greg, do you remember?
It was due to EHCI bios issues, I think the scheduler just got blamed for being the last thing that printed out. I'll go dig up that bug number...
*** This bug has been marked as a duplicate of 6011 ***