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Date: Wed, 26 Oct 2016 14:30:49 -0700 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Bob Peterson <rpeterso@...hat.com>, Borislav Petkov <bp@...e.de> Cc: Andy Lutomirski <luto@...capital.net>, Andreas Gruenbacher <agruenba@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Andy Lutomirski <luto@...nel.org>, LKML <linux-kernel@...r.kernel.org>, Steven Whitehouse <swhiteho@...hat.com>, Mel Gorman <mgorman@...hsingularity.net>, linux-mm <linux-mm@...ck.org> Subject: Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit On Wed, Oct 26, 2016 at 2:01 PM, Bob Peterson <rpeterso@...hat.com> wrote: > > Hm. It didn't even boot, at least on my amd box in the lab. > I've made no attempt to debug this. Hmm. Looks like a completely independent issue from the patch. Did you try booting that machine without the patch? > [ 2.378877] kernel BUG at arch/x86/mm/physaddr.c:26! Ok, similar issue, I think - passing a non-1:1 address to __phys_addr(). But the call trace has nothing to do with gfs2 or the bitlocks: > [ 2.504561] Call Trace: > [ 2.507005] save_microcode_in_initrd_amd+0x31/0x106 > [ 2.513778] save_microcode_in_initrd+0x3c/0x45 > [ 2.526110] do_one_initcall+0x50/0x180 > [ 2.531756] ? set_debug_rodata+0x12/0x12 > [ 2.537573] kernel_init_freeable+0x194/0x230 > [ 2.543740] ? rest_init+0x80/0x80 > [ 2.548952] kernel_init+0xe/0x100 > [ 2.554164] ret_from_fork+0x25/0x30 I think this might be the cont = __pa(container); line in save_microcode_in_initrd_amd(). I see that Borislav is busy with some x86/microcode patches, I suspect he already hit this. Adding Borislav to the cc. Can you re-try without the AMD microcode driver for now? This seems to be a separate issue from the gfs2 one. Linus
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