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Tue, 23 Sep 2025 09:41:10 +0000 Message-ID: <9aebc248-6f63-4f01-bb41-840095e44cd0@suse.de> Date: Tue, 23 Sep 2025 11:41:09 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: ast "WARN_ON(!__ast_dp_wait_enable("ast, enabled)) on reboot To: Nirmoy Das , KuoHsiang Chou Cc: dri-devel@lists.freedesktop.org, Carol Soto , Matt Ochs References: Content-Language: en-US From: Thomas Zimmermann Autocrypt: addr=tzimmermann@suse.de; keydata= xsBNBFs50uABCADEHPidWt974CaxBVbrIBwqcq/WURinJ3+2WlIrKWspiP83vfZKaXhFYsdg XH47fDVbPPj+d6tQrw5lPQCyqjwrCPYnq3WlIBnGPJ4/jreTL6V+qfKRDlGLWFjZcsrPJGE0 BeB5BbqP5erN1qylK9i3gPoQjXGhpBpQYwRrEyQyjuvk+Ev0K1Jc5tVDeJAuau3TGNgah4Yc hdHm3bkPjz9EErV85RwvImQ1dptvx6s7xzwXTgGAsaYZsL8WCwDaTuqFa1d1jjlaxg6+tZsB 9GluwvIhSezPgnEmimZDkGnZRRSFiGP8yjqTjjWuf0bSj5rUnTGiyLyRZRNGcXmu6hjlABEB AAHNJ1Rob21hcyBaaW1tZXJtYW5uIDx0emltbWVybWFubkBzdXNlLmRlPsLAjgQTAQgAOAIb AwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftODH AAoJEGgNwR1TC3ojx1wH/0hKGWugiqDgLNXLRD/4TfHBEKmxIrmfu9Z5t7vwUKfwhFL6hqvo lXPJJKQpQ2z8+X2vZm/slsLn7J1yjrOsoJhKABDi+3QWWSGkaGwRJAdPVVyJMfJRNNNIKwVb U6B1BkX2XDKDGffF4TxlOpSQzdtNI/9gleOoUA8+jy8knnDYzjBNOZqLG2FuTdicBXblz0Mf vg41gd9kCwYXDnD91rJU8tzylXv03E75NCaTxTM+FBXPmsAVYQ4GYhhgFt8S2UWMoaaABLDe 7l5FdnLdDEcbmd8uLU2CaG4W2cLrUaI4jz2XbkcPQkqTQ3EB67hYkjiEE6Zy3ggOitiQGcqp j//OwE0EWznS4AEIAMYmP4M/V+T5RY5at/g7rUdNsLhWv1APYrh9RQefODYHrNRHUE9eosYb T6XMryR9hT8XlGOYRwKWwiQBoWSDiTMo/Xi29jUnn4BXfI2px2DTXwc22LKtLAgTRjP+qbU6 3Y0xnQN29UGDbYgyyK51DW3H0If2a3JNsheAAK+Xc9baj0LGIc8T9uiEWHBnCH+RdhgATnWW GKdDegUR5BkDfDg5O/FISymJBHx2Dyoklv5g4BzkgqTqwmaYzsl8UxZKvbaxq0zbehDda8lv hFXodNFMAgTLJlLuDYOGLK2AwbrS3Sp0AEbkpdJBb44qVlGm5bApZouHeJ/+n+7r12+lqdsA EQEAAcLAdgQYAQgAIAIbDBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftOH6AAoJEGgNwR1T C3ojVSkIALpAPkIJPQoURPb1VWjh34l0HlglmYHvZszJWTXYwavHR8+k6Baa6H7ufXNQtThR yIxJrQLW6rV5lm7TjhffEhxVCn37+cg0zZ3j7zIsSS0rx/aMwi6VhFJA5hfn3T0TtrijKP4A SAQO9xD1Zk9/61JWk8OysuIh7MXkl0fxbRKWE93XeQBhIJHQfnc+YBLprdnxR446Sh8Wn/2D Ya8cavuWf2zrB6cZurs048xe0UbSW5AOSo4V9M0jzYI4nZqTmPxYyXbm30Kvmz0rYVRaitYJ 4kyYYMhuULvrJDMjZRvaNe52tkKAvMevcGdt38H4KSVXAylqyQOW5zvPc4/sq9c= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 67AF021A34 X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-0.994]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_TLS_ALL(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; TO_DN_SOME(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; MID_RHS_MATCH_FROM(0.00)[]; SUBJECT_HAS_EXCLAIM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_FIVE(0.00)[5]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:mid,imap1.dmz-prg2.suse.org:rdns,imap1.dmz-prg2.suse.org:helo]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DKIM_TRACE(0.00)[suse.de:+] 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 23.09.25 um 11:25 schrieb Nirmoy Das: > > On 23.09.25 11:15, Thomas Zimmermann wrote: >> Hi >> >> Am 23.09.25 um 10:34 schrieb Nirmoy Das: >>> >>> Hi Thomas and KuoHsiang >>> >>> >>> (Not sure if there is separate portal to report AST issues. Let me >>> know if there is one) >>> >>> We are observing the following trace on every reboot. I tried >>> increasing the timeout value but that did not resolve the issue. >>> >>> I tried to read AST_IO_VGACRI(0xdf) and AST_IO_VGACRI(0xe3) which  >>> returns a value of 0xff. I wonder if >>> >>> the device is accessible at pci_device_shutdown(). >>> >>> I have attached the lspci output for your review.  Please let me >>> know if you have some ideas how to debug/fix this. >>> >> >> Is that a new problem? I occasionally refactor parts of the driver. >> It could happen that an older version works? > > > We saw this on 6.14 and 6.16 so I think it is not a new issue. Should > we try out more older kernel? If you can. The DP code got added in v5.19 by commit 594e9c04b586 ("drm/ast: Create the driver for ASPEED proprietory Display-Port"). Best regards Thomas > > > Regards, > > Nirmoy > >> >> Best regards >> Thomas >> >>> [ 196.248014] ast 0008:02:00.0: [drm] >>> drm_WARN_ON(!__ast_dp_wait_enable(ast, enabled)) [ 196.248045] >>> WARNING: CPU: 76 PID: 1 at drivers/gpu/drm/ast/ast_dp.c:282 >>> ast_dp_set_enable+0x124/0x158 [ast] [ 196.277550] Modules linked in: >>> bcache qrtr cfg80211 binfmt_misc cdc_subset ast dax_hmem >>> drm_shmem_helper cxl_acpi drm_client_lib cxl_port i2c_algo_bit >>> cxl_core ipmi_ssif drm_kms_helper uio_pdrv_genirq uio coresight_trbe >>> arm_spe_pmu arm_cspmu_module arm_smmuv3_pmu spi_nor mtd >>> coresight_funnel acpi_power_meter acpi_ipmi coresight_etm4x >>> coresight ipmi_msghandler dm_multipath efi_pstore drm nfnetlink >>> ip_tables x_tables autofs4 overlay isofs nls_iso8859_1 raid10 >>> raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx >>> xor xor_neon raid6_pq raid1 raid0 linear mlx5_ib ib_uverbs ib_core >>> mlx5_core ghash_ce sm4_ce_cipher sm4 sm3_ce mlxfw sha3_ce psample >>> i2c_smbus sha512_ce nvme tls sha1_ce arm_smccc_trng nvme_core >>> pci_hyperv_intf spi_tegra210_quad dax_pmem i2c_tegra cdc_ether >>> usbnet aes_neon_bs aes_neon_blk aes_ce_blk aes_ce_cipher [last >>> unloaded: ipmi_devintf] [ 196.355667] CPU: 76 UID: 0 PID: 1 Comm: >>> shutdown Tainted: G W 6.16.4-dev-main-nvidia-pset-linux-6-generic >>> #16+f4490439 PREEMPT(none) [ 196.369453] Tainted: [W]=WARN [ >>> 196.372481] Hardware name: NVIDIA Grace CPU P5041/P3880, BIOS >>> FF.04.00 20250422 [ 196.379955] pstate: 63400009 (nZCv daif +PAN >>> -UAO +TCO +DIT -SSBS BTYPE=--) [ 196.387073] pc : >>> ast_dp_set_enable+0x124/0x158 [ast] [ 196.392148] lr : >>> ast_dp_set_enable+0x124/0x158 [ast] [ 196.397221] sp : >>> ffff80008049b930 [ 196.400604] x29: ffff80008049b930 x28: >>> ffffa507dbec1b98 x27: ffff0000acb337b8 [ 196.407901] x26: >>> 0000000000000000 x25: ffff1003985d2e00 x24: ffffa507dbdc45b8 [ >>> 196.415197] x23: 0000000000000000 x22: 0000000000418958 x21: >>> 00000000ffffffdf [ 196.422495] x20: ffff100008bac0c8 x19: >>> 0000000000000000 x18: 000000000000004c [ 196.429790] x17: >>> ffff100008b5f200 x16: ffffa508522b5ce8 x15: 0000000000000000 [ >>> 196.437087] x14: 0000000000000000 x13: 2d2d2d2d2d2d2d2d x12: >>> 2d2d2d2d5d206572 [ 196.444384] x11: 656820747563205b x10: >>> 0000000000000020 x9 : ffffa508523621cc [ 196.451681] x8 : >>> 00000000ffffffff x7 : 0000000000000030 x6 : 0000000005000000 [ >>> 196.458976] x5 : 000000000000004d x4 : 00000000000000c0 x3 : >>> 0000000000000003 [ 196.466271] x2 : 0000000000000000 x1 : >>> 0000000000000000 x0 : ffff000081356040 [ 196.473566] Call trace: [ >>> 196.476061] ast_dp_set_enable+0x124/0x158 [ast] (P) [ 196.481135] >>> ast_astdp_encoder_helper_atomic_disable+0x28/0x90 [ast] [ >>> 196.487630] disable_outputs+0x11c/0x3c8 [drm_kms_helper] [ >>> 196.493160] drm_atomic_helper_commit_tail+0x2c/0xb0 [drm_kms_helper] >>> [ 196.499753] ast_mode_config_helper_atomic_commit_tail+0x34/0x58 >>> [ast] [ 196.506427] commit_tail+0xd8/0x220 [drm_kms_helper] [ >>> 196.511503] drm_atomic_helper_commit+0x174/0x190 [drm_kms_helper] [ >>> 196.517824] drm_atomic_commit+0x94/0xe0 [drm] [ 196.522392] >>> drm_atomic_helper_disable_all+0x204/0x220 [drm_kms_helper] [ >>> 196.529158] drm_atomic_helper_shutdown+0x90/0x158 [drm_kms_helper] [ >>> 196.535567] ast_pci_shutdown+0x1c/0x30 [ast] [ 196.540020] >>> pci_device_shutdown+0x3c/0xa8 [ 196.544216] >>> device_shutdown+0x140/0x2b0 [ 196.548229] kernel_restart+0x4c/0xb8 [ >>> 196.551974] __do_sys_reboot+0x148/0x260 [ 196.555979] >>> __arm64_sys_reboot+0x2c/0x40 [ 196.560074] invoke_syscall+0x70/0x100 >>> [ 196.563907] el0_svc_common.constprop.0+0x48/0xf8 [ 196.568712] >>> do_el0_svc+0x28/0x40 [ 196.572097] el0_svc+0x34/0xd8 [ 196.575220] >>> el0t_64_sync_handler+0x144/0x168 [ 196.579670] >>> el0t_64_sync+0x1b0/0x1b8 [ 196.583411] ---[ end trace >>> 0000000000000000 ]--- [ 196.656701] reboot: Restarting system >>> >>> lspci: >>> >>> 0008:03:00.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI >>> Bridge (rev 06) (prog-if 00 [Normal decode]) Subsystem: ASPEED >>> Technology, Inc. AST1150 PCI-to-PCI Bridge Physical Slot: 2-1 Flags: >>> bus master, fast devsel, latency 0, NUMA node 0, IOMMU group 24 Bus: >>> primary=03, secondary=04, subordinate=04, sec-latency=0 I/O behind >>> bridge: 40000-40fff [size=4K] [16-bit] Memory behind bridge: >>> 40000000-410fffff [size=17M] [32-bit] Prefetchable memory behind >>> bridge: [disabled] [64-bit] Capabilities: [40] Power Management >>> version 3 Capabilities: [68] Express PCI-Express to PCI/PCI-X >>> Bridge, MSI 00 Capabilities: [b0] Subsystem: ASPEED Technology, Inc. >>> AST1150 PCI-to-PCI Bridge Capabilities: [e0] Vendor Specific >>> Information: Len=20 Capabilities: [100] Device Serial Number >>> 00-80-5e-00-00-10-0b-b0 Capabilities: [10c] Secondary PCI Express >>> Capabilities: [150] Virtual Channel Capabilities: [1e0] Vendor >>> Specific Information: ID=0001 Rev=2 Len=010 Capabilities: [1f0] >>> Advanced Error Reporting 0008:04:00.0 VGA compatible controller: >>> ASPEED Technology, Inc. ASPEED Graphics Family (rev 52) (prog-if 00 >>> [VGA controller]) DeviceName: Embedded Video Controller Subsystem: >>> ASPEED Technology, Inc. ASPEED Graphics Family !!! Unknown header >>> type 7f Memory at 650040000000 (32-bit, non-prefetchable) [size=16M] >>> Memory at 650041000000 (32-bit, non-prefetchable) [size=256K] I/O >>> ports at 40000 [size=128] Kernel driver in use: ast Kernel modules: ast >>> >> -- -- 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)