On Wed, Aug 23, 2023 at 12:09 PM Pandey, Radhey Shyam <radhey.shyam.pandey@xxxxxxx> wrote: > > > -----Original Message----- > > From: Alexander Kamensky <alexander.kamensky42@xxxxxxxxx> > > Sent: Tuesday, August 22, 2023 9:24 AM > > To: Pandey, Radhey Shyam <radhey.shyam.pandey@xxxxxxx> > > Cc: bhe@xxxxxxxxxx; piliu@xxxxxxxxxx; kexec@xxxxxxxxxxxxxxxxxxx; linux- > > kernel@xxxxxxxxxxxxxxx; Sarangi, Anirudha <anirudha.sarangi@xxxxxxx> > > Subject: Re: kexec reports "Cannot get kernel _text symbol address" on > > arm64 platform > > > > Hi All, > > > > Sorry for the top post, but I believe that I might have posted a fix for this > > issue a couple days ago. > > > > Please check and see if it helps > > https://lore.kernel.org/kexec/20230819191119.975299-1- > > alexander.kamensky42@xxxxxxxxx/T/#u > > > > Explanation for the issue I observed with a similar secondary kernel > > traceback on arm64 is in the commit message. > > I fetched latest kexec sources (777ca453ca69e46f7376b07ba6727bd261ec97ef) > and applied above patch, a bit improved but still vmcore size is huge. > > / # ls -lrth /proc/vmcore > -r-------- 1 root root 15.5G Aug 23 18:55 /proc/vmcore > How big is your system memory? If it is 16G then the above is normal. The most important thing is can your secondary kernel read it? For example cat /proc/vmcore > /dev/null If you want to capture only kernel core out of /proc/vmcore you need to use makedumpfile to filter out the rest of the memory. Thanks, Alexander > Thanks, > Radhey _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
