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Weston crashes after several HDMI connection cycles

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Weston crashes after several HDMI connection cycles

a month ago
113 Views
andrejs-tx
Contributor I

Hello,

We face an issue with weston, and/or potentially imx_drm driver. Executing following script, which emulates fast HDMI cable reconnection cycles, leads to weston crash, which, in turn, might be the result of misbehaving imx_drm driver.

Test script:

#/bin/bash

loops=10
iters=10

l=1
while [ $l -le $loops ]
do
        echo "Iteration: $l/$loops"

        i=1
        while [ $i -le $iters ]
        do
                echo "Reconnecting display: $i/$iters"

                echo off > /sys/class/drm/card0-HDMI-A-1/status
                sleep 0.5;
                echo on > /sys/class/drm/card0-HDMI-A-1/status
                sleep 0.5;

                i=$((i + 1))
        done

        sleep 5;

        l=$((l + 1))
done

 

Kernel log:

[   37.589206] audit: type=1701 audit(1720002160.627:20): auid=0 uid=0 gid=0 ses=2 pid=752 comm="weston" exe="/usr/bin/weston" sig=11 res=1

[   37.722022] ------------[ cut here ]------------
[   37.722031] [CRTC:33:crtc-0] vblank wait timed out
[   37.722073] WARNING: CPU: 3 PID: 1 at drivers/gpu/drm/drm_atomic_helper.c:1542 drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[   37.722094] Modules linked in: rfcomm algif_hash algif_skcipher af_alg fsl_jr_uio caam_jr caamkeyblob_desc caamhash_desc caamalg_desc crypto_engine authenc libdes mwifiex_sdio crct10dif_ce hci_uart snd_soc_imx_hdmi mwifiex btmrvl_sdio btqca btbcm btmrvl cfg80211 dw_hdmi_cec bluetooth snd_soc_fsl_sai snd_soc_fsl_aud2htx imx_sdma rfkill ina2xx snd_soc_wm8904 lm75 flexcan caam can_dev secvio error galcore(O) fuse
[   37.722218] CPU: 3 PID: 1 Comm: systemd Tainted: G           O      5.15.148-6.7.0-devel+git.bfdbfb2c85fb #1
[   37.722225] Hardware name: Toradex Verdin iMX8M Plus WB on Dahlia Board (DT)
[   37.722229] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   37.722236] pc : drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[   37.722246] lr : drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[   37.722260] sp : ffff800009c4b730
[   37.722262] x29: ffff800009c4b780 x28: 0000000000000c36 x27: 0000000000000000
[   37.722276] x26: 0000000000000001 x25: 0000000000000038 x24: ffff0000c0fed800
[   37.722289] x23: 0000000000000001 x22: 0000000000000000 x21: ffff0000cc33f900
[   37.722303] x20: ffff0000c0c3b088 x19: 0000000000000000 x18: ffffffffffffffff
[   37.722317] x17: 0000000000000000 x16: 0000000000000000 x15: ffff800009bb5478
[   37.722331] x14: 0000000000000000 x13: 0a74756f2064656d x12: 6974207469617720
[   37.722343] x11: ffff800009a02690 x10: 000000000000003a x9 : 0000000000000021
[   37.722357] x8 : 00000000ffffffff x7 : 6974207469617720 x6 : 000000000000000c
[   37.722371] x5 : ffff0000ff7739f0 x4 : 0000000000000000 x3 : 0000000000000027
[   37.722384] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000c0098000
[   37.722399] Call trace:
[   37.722402]  drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[   37.722413]  drm_atomic_helper_wait_for_vblanks+0x18/0x30
[   37.722424]  lcdifv3_drm_atomic_commit_tail+0x54/0x70
[   37.722432]  commit_tail+0xa0/0x190
[   37.722440]  drm_atomic_helper_commit+0x170/0x190
[   37.722448]  drm_atomic_commit+0x4c/0x60
[   37.722458]  drm_client_modeset_commit_atomic+0x1d0/0x274
[   37.722467]  drm_client_modeset_commit_locked+0x5c/0x19c
[   37.722477]  drm_fb_helper_set_par+0x98/0x120
[   37.722487]  fb_set_var+0x174/0x354
[   37.722495]  fbcon_blank+0x160/0x240
[   37.722504]  do_unblank_screen+0x90/0x150
[   37.722513]  vt_ioctl+0x3dc/0x1620
[   37.722523]  tty_ioctl+0x24c/0xc40
[   37.722532]  __arm64_sys_ioctl+0xa8/0xf0
[   37.722539]  invoke_syscall+0x48/0x114
[   37.722550]  el0_svc_common.constprop.0+0x44/0xfc
[   37.722562]  do_el0_svc+0x28/0xa0
[   37.722570]  el0_svc+0x28/0x80
[   37.722583]  el0t_64_sync_handler+0xa4/0x130
[   37.722595]  el0t_64_sync+0x1a0/0x1a4
[   37.722605] ---[ end trace c03bfda25e7292c9 ]---

[   58.137025] [drm:drm_crtc_commit_wait] *ERROR* flip_done timed out
[   58.143332] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:33:crtc-0] commit wait timed out
[   68.376810] [drm:drm_crtc_commit_wait] *ERROR* flip_done timed out
[   68.383119] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:35:HDMI-A-1] commit wait timed out
[   78.616721] [drm:drm_crtc_commit_wait] *ERROR* flip_done timed out
[   78.623026] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:31:plane-0] commit wait timed out

 

Systemd log:

Jul 03 10:22:40 verdin-imx8mp-07174536 systemd[1]: weston.service: Main process exited, code=killed, status=11/SEGV
Jul 03 10:22:40 verdin-imx8mp-07174536 systemd[1]: weston.service: Failed with result 'signal'.

 

Hardware:

- iMX8MP

Software:

- Linux: NXP downstream 5.15-2.2.x

- Weston: NXP downstream 10.0.1

 

Please let me know if you need further details.

 

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1 Reply

a month ago
110 Views
andrejs-tx
Contributor I

In some occurrences, the kernel log is different:

 

[  303.042081] ------------[ cut here ]------------
[  303.046775] [CRTC:33:crtc-0] vblank wait timed out
[  303.051677] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/drm_atomic_helper.c:1542 drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[  303.063742] Modules linked in: rfcomm algif_hash algif_skcipher af_alg fsl_jr_uio caam_jr caamkeyblob_desc caamhash_desc caamalg_desc crypto_engine authenc libdes crct10dif_ce snd_soc_imx_hdmi mwifiex_sdio hci_uart btqca mwifiex snd_soc_fsl_aud2htx btmrvl_sdio btbcm btmrvl dw_hdmi_cec snd_soc_fsl_sai bluetooth cfg80211 rfkill imx_sdma snd_soc_wm8904 ina2xx flexcan lm75 can_dev caam secvio error galcore(O) fuse
[  303.100639] CPU: 0 PID: 1 Comm: systemd Tainted: G        W  O      5.15.148-6.7.0-devel+git.bfdbfb2c85fb #1
[  303.110582] Hardware name: Toradex Verdin iMX8M Plus WB on Dahlia Board (DT)
[  303.117712] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  303.124762] pc : drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[  303.131374] lr : drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[  303.137985] sp : ffff800009c4b990
[  303.141341] x29: ffff800009c4b9e0 x28: 0000000000003402 x27: 0000000000000000
[  303.148571] x26: 0000000000000001 x25: 0000000000000038 x24: ffff0000c1015800
[  303.155798] x23: 0000000000000001 x22: 0000000000000000 x21: ffff0000c17b5b00
[  303.163025] x20: ffff0000c1014888 x19: 0000000000000000 x18: 0000000000000001
[  303.170252] x17: 0000000000000004 x16: 0000000000000000 x15: 0000000000000000
[  303.177480] x14: 0000000000000020 x13: ffff800009a026a0 x12: 0000000000000651
[  303.184709] x11: 000000000000021b x10: ffff800009a026a0 x9 : ffff800009a026a0
[  303.191936] x8 : 00000000ffffefff x7 : ffff800009a5a6a0 x6 : ffff800009a5a6a0
[  303.199164] x5 : 0000000000000000 x4 : ffff0000ff7379f0 x3 : ffff0000ff73a9e0
[  303.206393] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000c0098000
[  303.213620] Call trace:
[  303.216097]  drm_atomic_helper_wait_for_vblanks.part.0+0x280/0x2ac
[  303.222360]  drm_atomic_helper_wait_for_vblanks+0x18/0x30
[  303.227827]  lcdifv3_drm_atomic_commit_tail+0x54/0x70
[  303.232942]  commit_tail+0xa0/0x190
[  303.236479]  drm_atomic_helper_commit+0x170/0x190
[  303.241246]  drm_atomic_commit+0x4c/0x60
[  303.245220]  drm_client_modeset_commit_atomic+0x1d0/0x274
[  303.250694]  drm_client_modeset_commit_locked+0x5c/0x19c
[  303.256076]  drm_client_modeset_commit+0x30/0x60
[  303.260757]  drm_fbdev_client_restore+0x74/0xd0
[  303.265347]  drm_client_dev_restore+0x80/0xe0
[  303.269762]  drm_lastclose+0x6c/0x7c
[  303.273387]  drm_release+0x110/0x130
[  303.277012]  __fput+0x70/0x260
[  303.280112]  ____fput+0x10/0x20
[  303.283297]  task_work_run+0x80/0xe0
[  303.286920]  do_notify_resume+0x214/0x1280
[  303.291072]  el0_svc+0x6c/0x80
[  303.294169]  el0t_64_sync_handler+0xa4/0x130
[  303.298499]  el0t_64_sync+0x1a0/0x1a4
[  303.302208] ---[ end trace 813df8e5850192da ]---

[  313.418126] [drm:drm_crtc_commit_wait] *ERROR* flip_done timed out
[  313.424425] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:33:crtc-0] commit wait timed out
[  323.658159] [drm:drm_crtc_commit_wait] *ERROR* flip_done timed out
[  323.664454] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:35:HDMI-A-1] commit wait timed out
[  333.898205] [drm:drm_crtc_commit_wait] *ERROR* flip_done timed out
[  333.904501] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:31:plane-0] commit wait timed out

 

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