Messages in this thread | | | Date | Tue, 20 Jan 2009 13:18:15 -0500 | From | "James Kirin" <> | Subject | kernel panic when using disable_mtrr_trim [was: Re: memory beyond4GB invisible to the system even though CONFIG_HIGHMEM64G=y] |
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Hi Yinghai,
When I boot with "disable_mtrr_trim mem=4g", the system boots fine. Then I changed that to "disable_mtrr_trim mem=6g" and a kernel panic occurs:
[...] Freeing unused kernel memory: 296k freed [...] Write protecting the kernel text: 3040k [...] Write protecting the kernel read-only data: 1352k [...] khelper used greatest stack depth: 6724 byytes left [...] Kernel panic - not syncing: No init found. Try passing init= option to kernel.
I can always reproduce this: all it takes it to boot from a rescue CD, switch between "mem=4g" and "mem=6g" in /etc/lilo.conf, run lilo and reboot. If it is 4g, it boots fine; if it is 6g, a kernel panic occurs. No other changes at all were made.
Same thing (kernel panic) occurs if mem=5g is used.
I am attaching the kernel config used when this happens.
Please let me know how I can help fix this. Does it somehow depend on all those MTRR/etc memory-related options in the kernel configuration?
Thank you so much,
James [unhandled content-type:application/octet-stream] | |