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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.981]; MIME_GOOD(-0.10)[text/plain]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_TO(0.00)[gmail.com]; TO_DN_SOME(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_FIVE(0.00)[6]; RCVD_TLS_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FUZZY_BLOCKED(0.00)[rspamd.com]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo, suse.de:mid, suse.de:email] X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi Am 11.11.24 um 20:06 schrieb Nuno Gonçalves: > > > On Mon, Nov 11, 2024, 14:37 Thomas Zimmermann wrote: > > Hi > > > Am 11.11.24 um 14:42 schrieb Nuno Gonçalves: > > On Mon, Nov 11, 2024 at 1:22 PM Thomas Zimmermann > wrote: > >> The patch in question changes the whole memory management of the > >> affected code. It's also noteworthy that most of it has been > reworked > >> for the upcoming v6.12. Maybe this already fixed the problem. > Kernel > >> v6.11-rc7 added commit 5a498d4d06d6 ("drm/fbdev-dma: Only install > >> deferred I/O if necessary"), which possibly fixes the problem > as well. > >> > >> But there's no explicit fix for this problem and I have not > seen any > >> other related reports. Any further information is welcome. > > Issue was present since 5ab91447aa13b8b98bc11f5326f33500b0ee2c48 and > > tested until 6.12-rc3. > > Is there any suggestion on how to dig down? > > Do you have a stack trace of this problem? > > > No. I need to build kernel with debug? Isn't there an error message in the output of dmesg? Or maybe can you save the whole output of dmesg after a crash and attach the file to an email? In the original bug report, you mentioned that you often get an error. But not 'always'? Do you have a reproducer for the problem? Such as a very simple program that triggers the bug. > > > > Which hardware platform is affected? > > > ARM64 with ili9225 and display size 220, 176. It also > happens in another board with a different tinydrm driver and size 320, > 240. I meant, which board or CPU. ARM64/Aarch64 is really just a very broad term describing the system. Best regards Thomas -- -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Frankenstrasse 146, 90461 Nuernberg, Germany GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman HRB 36809 (AG Nuernberg)