[Crash-utility] Re: [PATCH] get vmalloc start address from vmcoreinfo

On 01-Mar-2024, at 12:32 PM, Aditya Gupta <adityag(a)linux.ibm.com&gt; wrote: Below error is noticed when running crash on vmcore collected from a linux-next kernel crash (linux-next tag next-20240121): # crash /boot/vmlinuz-6.8.0-rc5-next-20240221 ./vmcore …… …… For help, type “help”. Type "apropos word" to search for commands related to "word"... crash: page excluded: kernel virtual address: c00000000219a2c0 type: “vmlist" This occured since getting the vmalloc area base address doesn't work in crash now, due to 'vmap_area_list' being removed in the linux kernel with below commit (in linux-next tree): commit 378eb24a0658dd922b29524e0ce35c6c43f56cba mm/vmalloc: remove vmap_area_list As an alternative, the commit introduced 'VMALLOC_START' in vmcoreinfo to get base address of vmalloc area, use it to return vmallow start address instead of depending on vmap_area_list and vmlist Reported-by: Sachin Sant <sachinp(a)linux.ibm.com&gt; Signed-off-by: Aditya Gupta <adityag(a)linux.ibm.com&gt; ---