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

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On Tue, Mar 12, 2024 at 02:50:37PM +0800, Tao Liu wrote:
> LGTM
> 
> Acked-by: Tao Liu <ltao@xxxxxxxxxx>

Hi Tao,

Thanks for the ack.

-Aditya Gupta

> 
> On Mon, Mar 11, 2024 at 5:13 PM Aditya Gupta <adityag@xxxxxxxxxxxxx> wrote:
> >
> >
> > On 11/03/24 10:53, Hari Bathini wrote:
> > >
> > >
> > > On 01/03/24 12:32 pm, Aditya Gupta 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
> > >>
> > >
> > > LGTM.
> > >
> > > Acked-by: Hari Bathini <hbathini@xxxxxxxxxxxxx>
> > >
> > Thanks for the ack, hari.
> >
> > - Aditya Gupta
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