Hello. Thanks for the report. On Wed, Sep 21, 2022 at 05:44:56PM +0300, Anatoly Pugachev <matorola@xxxxxxxxx> wrote: > On Sun, Sep 18, 2022 at 12:39 PM Anatoly Pugachev <matorola@xxxxxxxxx> wrote: > > > > > > I'm unable to boot my sparc64 VM anymore (5.19 still boots, 6.0-rc1 does not), > > bisected up to this patch, > > > > mator@ttip:~/linux-2.6$ git bisect bad > > 1d0403d20f6c281cb3d14c5f1db5317caeec48e9 is the first bad commit > > commit 1d0403d20f6c281cb3d14c5f1db5317caeec48e9 > > reverting this patch makes my sparc64 box boot successfully. The failed address falls into vmmemmap region (per your boot log output). It looks like the respective page/folio (of init_net struct) is unbacked there (and likely folio_test_slab fails dereferencing ->flags). Would you mind sharing your kernel's config? (I'm most curious about CONFIG_SPARSMEM_VMEMMAP, I'm not familiar with your arch at all though.) Thanks, Michal
