On 2024/08/02 20:50, Jose Fernandez wrote: > On 24/08/02 06:54PM, Tao Liu wrote: >> Hi Jose, >> >> Thanks for reporting the issue. It looks like a known issue which we >> are currently dealing with. >> >> On Fri, Aug 2, 2024 at 6:11 PM Jose Fernandez <jose.fernandez@xxxxxxxxx> wrote: >>> >>> I'm trying to get crash to work on Arch Linux but I keep running into this error: >>> >>> crash: seek error: kernel virtual address: ffffffff82b195c0 type: "page_offset_base" >>> >> It looks like some kaslr issue to me, could you please execute the >> following cmd and show me the results? >> >> $ nm vmlinux | grep kaslr_regions >> >> If there is no output, aka no such symbol is found, then you hit a >> known kaslr issue. > > Hi Tao, here is the output for the CachyOS kernel: > > nm /usr/src/debug/linux-cachyos/vmlinux | grep kaslr > ffffffff820af590 T init_trampoline_kaslr > ffffffff82014e60 T kaslr_get_random_long > ffffffff83a9d940 d kaslr_regions > ffffffff820af580 T __pfx_init_trampoline_kaslr > ffffffff82014e50 T __pfx_kaslr_get_random_long > > And here is the output for the upstream 6.11RC I built myself: > nm vmlinux | grep kaslr > ffffffff810ae060 T init_trampoline_kaslr > ffffffff81deb600 T kaslr_get_random_long > ffffffff83871940 d kaslr_regions > ffffffff810ae050 T __pfx_init_trampoline_kaslr > ffffffff81deb5f0 T __pfx_kaslr_get_random_long > > Thanks, > Jose > >> >> Thanks, >> Tao Liu >> >>> I've the upstream 6.11RC and the latest CachyOS kernel (6.10.2). I boot into >>> the target kernel and then run crash with the respective vmlinux file. I'm >>> simply trying to load /proc/kcore with this command: >>> >>> crash /usr/src/debug/linux-cachyos/vmlinux /proc/kcore -d10 >>> >>> Here is the full output: >>> >>> crash 8.0.5 ... >>> crash: seek error: kernel virtual address: ffffffff82b195c0 type: "page_offset_base" Are you using a crash that contains this commit? https://github.com/crash-utility/crash/commit/6752571d8d782d07537a258a1ec8919ebd1308ad This commit is not contained in crash-8.0.5. Thanks, Kazu -- Crash-utility mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxxxxxx https://${domain_name}/admin/lists/devel.lists.crash-utility.osci.io/ Contribution Guidelines: https://github.com/crash-utility/crash/wiki
