Hi Will, On Tue, 15 Jun 2021 at 17:20, Will Deacon <will@xxxxxxxxxx> wrote: > > Hi Naresh, > > On Tue, Jun 15, 2021 at 04:41:25PM +0530, Naresh Kamboju wrote: > > Following kernel crash reported while boot linux next 20210615 tag on qemu_arm64 > > with allmodconfig build. <trim> > Thanks for the report, although since this appears to be part of a broader > testing effort, here are some things that I think would make the reports > even more useful: > > 1. An indication as to whether or not this is a regression (i.e. do you > have a known good build, perhaps even a bisection?) > > 2. Either a link to the vmlinux, or faddr2line run on the backtrace. > Looking at the above, I can't tell what sparse_init_nid+0x98/0x6d0 > actually is. > > 3. The exact QEMU command-line you are using, so I can try to reproduce > this locally. I think the 0-day bot wraps the repro up in a shell > script for you. > > 4. Whether or not the issue is reproducible. > > 5. Information about the toolchain you used to build the kernel (it > happens to be present here because it's in the kernel log, but > generally I think it would be handy to specify that in the report). > > Please can you provide that information for this crash? It would really > help in debugging it. Sorry for the incomplete bug report. Thanks for sharing these details. Next time I will include the suggested data points in my email report. - Naresh