Re: BUG in drm_kms_helper_poll_enable() fixed by reverting "drm/ast: report connection status on Display Port."

2023-11-09 Thread Kim Phillips
+LKML On 11/9/23 7:47 AM, Jocelyn Falempe wrote: On 09/11/2023 01:37, Kim Phillips wrote: Hi, current linux kernel commit 90450a06162e ("Merge tag 'rcu-fixes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks") and the attached config cause the followin

BUG in drm_kms_helper_poll_enable() fixed by reverting "drm/ast: report connection status on Display Port."

2023-11-08 Thread Kim Phillips
l_init() was added to an ast connector_init(), see: commit 595cb5e0b832a3e100cbbdefef797b0c27bf725a Author: Kim Phillips Date: Thu Oct 21 10:30:06 2021 -0500 Revert "drm/ast: Add detect function support" I'm willing to test any proposed changes, esp. if it means not reverting this commit, too, b

[PATCH] Revert "drm/ast: Add detect function support"

2021-10-21 Thread Kim Phillips
(relocation range: 0x8000-0xbfff) [ 29.046790] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- Since unreliable, found by bisecting for KASAN's use-after-free in enqueue_timer+0x4f/0x1e0, where the timer callback is called. Reported-by: Kim Phillips

Re: [PATCH] Revert "drm/ast: Zero is missing in detect function"

2021-10-15 Thread Kim Phillips
On 10/15/21 2:25 AM, Thomas Zimmermann wrote: Commit 572994bf18ff ("drm/ast: Zero is missing in detect function") prevents some systems from booting. Seen on Supermicro Super Server/X10SRL-F, BIOS 3.3 10/28/2020 . There's further a bug that results in KASAN: use-after-free in

Re: BUG: KASAN: use-after-free in enqueue_timer+0x4f/0x1e0

2021-10-11 Thread Kim Phillips
Hi, On 10/5/21 1:10 PM, Kim Phillips wrote: Hi, I occasionally see the below trace with Linus' master on an AMD Milan system: [   25.657322] BUG: kernel NULL pointer dereference, address: [   25.665097] #PF: supervisor instruction fetch in kernel mode [   25.671448] #PF

BUG: KASAN: use-after-free in enqueue_timer+0x4f/0x1e0

2021-10-05 Thread Kim Phillips
Hi, I occasionally see the below trace with Linus' master on an AMD Milan system: [ 25.657322] BUG: kernel NULL pointer dereference, address: [ 25.665097] #PF: supervisor instruction fetch in kernel mode [ 25.671448] #PF: error_code(0x0010) - not-present page [