Hi Prabhakar,
On Fri, Sep 4, 2020 at 11:04 AM Lad, Prabhakar
<prabhakar.csengg@xxxxxxxxx> wrote:
> I am seeing "Unable to handle kernel paging request at virtual address
> xxxxxxxxxx" panic while running bonnie++ (version 1.04). I have
> managed to replicate this issue on R-Car M3N, G2[HMN]. I have been
> using renesas_defconfig for all the platforms and I have tested on
> Linux 5.9.0-rc3 for all the 4 platforms.
>
> Initially I was testing bonnie++ on eMMC device and later discovered
> even running bonnie++ on NFS mount is causing this issue. I have
> attached the logs for M3N while running bonnie++ on NFS and logs for
> G2N while running on eMMC.
>
> I even traced back to 5.2 kernel where initial G2M support was added
> and still able to see this issue.
Thanks for your report!
While the crash symptoms seem to be the same in all crash logs, the
backtraces aren't.
Does disabling SMP (maxcpus=1) help?
Does switching from SLUB to SLAB, and enabling CONFIG_DEBUG_SLAB
reveal memory corruption?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
