linux-kernel - kernel BUG at arch/arm64/mm/mmu.c:185!

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <a3d9acbe-07c2-43b6-9ba9-a7585f770e83@redhat.com>
Date: Tue, 18 Feb 2025 21:27:18 -0500
From: Luiz Capitulino <luizcap@...hat.com>
To: LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org
Cc: ardb@...nel.org, ryan.roberts@....com
Subject: kernel BUG at arch/arm64/mm/mmu.c:185!

Hi,

I'm getting the crash below with Linus tree commit
2408a807bfc3f738850ef5ad5e3fd59d66168996 on a Ampere Mt. Jade with two sockets
(backtrace below).

It happens very early during boot. Passing 'nokaslr' in the command-line works
around the issue (ie. I can boot and use the system normally). Doesn't seem to
happen with 6.13. I tried bisecting it but got nowhere...

[    0.000000] ------------[ cut here ]------------
[    0.000000] kernel BUG at arch/arm64/mm/mmu.c:185!
[    0.000000] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.14.0-rc3+ #8
[    0.000000] pstate: 400000c9 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.000000] pc : alloc_init_cont_pte+0x20c/0x3d0
[    0.000000] lr : alloc_init_cont_pte+0x204/0x3d0
[    0.000000] sp : ffffb45836ec78b0
[    0.000000] x29: ffffb45836ec7940 x28: ffff6fea00000000 x27: 0068000000000f07
[    0.000000] x26: ffff6fea00200000 x25: 0000400000000000 x24: ffffffffff433000
[    0.000000] x23: dfff800000000000 x22: 0000d01600000000 x21: 0068000000000f07
[    0.000000] x20: ffff6fea00000000 x19: ffff6fea00010000 x18: 00000000ae5a3fb1
[    0.000000] x17: 0000000000001114 x16: 00000000bfc60000 x15: 0000000000000200
[    0.000000] x14: 0000000000000000 x13: 1ffff68b06dd8f1c x12: 00000000f1f1f1f1
[    0.000000] x11: ffff768b06dd8f1c x10: ffffb45835a1ca38 x9 : 0000000000000000
[    0.000000] x8 : 0000000041b58ab3 x7 : 0000000000000000 x6 : 0000000000000000
[    0.000000] x5 : 006840000a861f07 x4 : 000000000000a861 x3 : 000000000000a861
[    0.000000] x2 : 006840000a861f03 x1 : 0068400000000f07 x0 : 0000000000000000
[    0.000000] Call trace:
[    0.000000]  alloc_init_cont_pte+0x20c/0x3d0 (P)
[    0.000000]  alloc_init_cont_pmd+0x20c/0x4d0
[    0.000000]  alloc_init_pud+0x244/0x400
[    0.000000]  create_kpti_ng_temp_pgd+0xf8/0x1c8
[    0.000000]  map_mem.constprop.0+0x1d8/0x3b8
[    0.000000]  paging_init+0x98/0x330
[    0.000000]  setup_arch+0xac/0x170
[    0.000000]  start_kernel+0x74/0x3c8
[    0.000000]  __primary_switched+0x8c/0xa0
[    0.000000] Code: f9400301 97ffff64 72001c1f 54fffe21 (d4210000)
[    0.000000] ---[ end trace 0000000000000000 ]---
[    0.000000] Kernel panic - not syncing: Oops - BUG: Fatal exception
[    0.000000] ---[ end Kernel panic - not syncing: Oops - BUG: Fatal exception ]---