Messages in this thread | | | From | Chandru <> | Subject | Re: 2.6.28-rc9 panics with crashkernel=256M while booting | Date | Fri, 16 Jan 2009 17:46:36 +0530 |
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On Thursday 15 January 2009 13:35:27 Chandru wrote: > Hello Dave, From the debug console output, if there is anything you can add > here, pls let me know.
As we can see from the console output here, physbase isn't page aligned when the panic occurs. So we could as well send (start_pfn << PAGE_SHIFT) to reserve_bootmem_node() instead of physbase. your thoughts ?.
Also end_pfn in mark_reserved_region_for_nid() is defined as
unsigned long end_pfn = ((physbase + size) >> PAGE_SHIFT);
Does this refer to the pfn after the area that we are interested in ?. We have atleast two fixes here, 1. Limit start and end to bdata->node_min_pfn and bdata->node_low_pfn in reserve_bootmem_node() and add comments out in there that the caller of the funtion should be aware of how much are they reserving. 2. send (start_pfn << PAGE_SHIFT) to reserve_bootmem_node() instead of physbase.
Chandru
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