[Crash-utility] Re: [PATCH] Reapply "vmcoreinfo: read vmcoreinfo using 'vmcoreinfo_data' when unavailable in elf note"

On 2/12/26 2:56 PM, Misbah Anjum N wrote: > Tested-by: Misbah Anjum N <misanjum(a)linux.ibm.com&gt; > > Hi, > I have tested this patch successfully on the following platform: > Platform: IBM PowerPC 64LE (PPC64LE) > Architecture: ppc64le > Host Kernel: 6.18.0-8-generic > Guest Kernel: 6.18.0-8-generic > OS: Ubuntu 26.04 (Resolute Raccoon) > Crash version: 9.0.1 (patched) > Compiler: gcc 15.2.0 > GDB version: 16.2 (embedded) > > Test cases verified: > -------------------- > 1. virsh dump --memory-only (elf, kdump-zlib compression) > 2. virsh dump --memory-only --bypass-cache (elf, kdump-zlib compression) > > Test results: > ------------ > - Patch applied cleanly to crash-9.0.1 (with offsets) > - Build completed successfully with all dependencies > - vmcoreinfo_read_from_memory fallback is active in diskdump.c and netdump.c > - Successfully reads vmcoreinfo from memory when ELF note method is unavailable > - Resolves the X86_64 kslar image regression > - No regressions detected > > Test logs (trimmed): > ------------------- > # virsh dump ubuntu2604 vmcore-mem --memory-only > Domain 'ubuntu2604' dumped to vmcore-mem > > # crash /usr/lib/debug/boot/vmlinux-6.18.0-8-generic vmcore-mem > crash 9.0.1 > ... > KERNEL: /usr/lib/debug/boot/vmlinux-6.18.0-8-generic > DUMPFILE: vmcore-mem > ... > crash> bt > PID: 0 TASK: c0000000038b1580 CPU: 0 COMMAND: "swapper/0" > [NIP : plpar_hcall_norets_notrace+24] > [LR : check_and_cede_processor+72] > ... > > The patch works as intended and fixes the vmcoreinfo reading issue. > Thanks, Thanks Misbah for Testing. @Tao, Will it be possible to send your test case for x64_64 ksalr vmcores so that we can also test on those.

~Shivang. > Misbah Anjum N > -- > Crash-utility mailing list -- devel(a)lists.crash-utility.osci.io > To unsubscribe send an email to devel-leave(a)lists.crash-utility.osci.io > https://${domain_name}/admin/lists/devel.lists.crash-utility.osci.io/ > Contribution Guidelines: https://github.com/crash-utility/crash/wiki