Hi On 2023-06-07, Greg Kroah-Hartman wrote: > From: Hyunwoo Kim <imv4bel@xxxxxxxxx> > > [ Upstream commit 6769a0b7ee0c3b31e1b22c3fadff2bfb642de23f ] > > If the device node of dvb_frontend is open() and the device is > disconnected, many kinds of UAFs may occur when calling close() > on the device node. > > The root cause of this is that wake_up() for dvbdev->wait_queue > is implemented in the dvb_frontend_release() function, but > wait_event() is not implemented in the dvb_frontend_stop() function. > > So, implement wait_event() function in dvb_frontend_stop() and > add 'remove_mutex' which prevents race condition for 'fe->exit'. > > [mchehab: fix a couple of checkpatch warnings and some mistakes at the error handling logic] > > Link: https://lore.kernel.org/linux-media/20221117045925.14297-2-imv4bel@xxxxxxxxx [...] I'm noticing a regression relative to kernel v6.3.6 with this change as part of kernel v6.3.7 on my ivy-bridge system running Debian/unstable (amd64) with vdr 2.6.0-1.1[0] and two DVB cards TeVii S480 V2.1 (DVB-S2, dw2102) and an Xbox One Digital TV Tuner (DVB-T2, dvb_usb_dib0700). The systemd unit starting vdr just times out and hangs forever, with vdr never coming up and also preventing a clean system shutdown (hard reset required). Apart from the systemd unit timing out, there don't really appear to be any further issues logged. # systemctl status -l vdr.service | cat ● vdr.service - Video Disk Recorder Loaded: loaded (/lib/systemd/system/vdr.service; enabled; preset: enabled) Drop-In: /etc/systemd/system/vdr.service.d └─override.conf, umask.conf Active: deactivating (stop-sigterm) (Result: timeout) Process: 762 ExecStartPre=/bin/sh /usr/lib/vdr/merge-commands.sh commands (code=exited, status=0/SUCCESS) Process: 1070 ExecStartPre=/bin/sh /usr/lib/vdr/merge-commands.sh reccmds (code=exited, status=0/SUCCESS) Main PID: 1088 (vdr) Tasks: 1 (limit: 38073) Memory: 215.8M CPU: 738ms CGroup: /system.slice/vdr.service └─1088 /usr/bin/vdr Jun 13 05:15:35 system vdr[1088]: [1088] detected /dev/dvb/adapter1/frontend0 Jun 13 05:15:35 system vdr[1088]: [1088] detected /dev/dvb/adapter0/frontend0 Jun 13 05:15:35 system vdr[1088]: [1088] probing /dev/dvb/adapter0/frontend0 Jun 13 05:15:35 system vdr[1088]: [1088] creating cDvbDevice Jun 13 05:15:35 system vdr[1088]: [1088] new device number 1 (card index 1) Jun 13 05:15:35 system vdr[1088]: [1088] DVB API version is 0x050B (VDR was built with 0x050B) Jun 13 05:15:35 system vdr[1088]: [1088] frontend 0/0 provides DVB-T,DVB-T2,DVB-C with QPSK,QAM16,QAM32,QAM64,QAM128,QAM256 ("Panasonic MN88472") Jun 13 05:15:35 system vdr[1088]: [1090] epg data reader thread ended (pid=1088, tid=1090) Jun 13 05:15:37 system vdr[1088]: [1089] video directory scanner thread ended (pid=1088, tid=1089) Jun 13 05:17:04 system systemd[1]: vdr.service: start operation timed out. Terminating. TeVii S480 V2.1 (this is effectively a PCIe card with a USB hub and two TeVii s660 card on the same PCB): lspci -nn: 04:00.0 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 04:00.1 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 04:00.2 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 04:00.3 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 04:00.4 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 04:00.5 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 04:00.6 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 04:00.7 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS9990 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] lsusb: Bus 002 Device 003: ID 9022:d660 TeVii Technology Ltd. DVB-S2 S660 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 003: ID 9022:d660 TeVii Technology Ltd. DVB-S2 S660 Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Xbox One Digital TV Tuner lsusb: Bus 001 Device 005: ID 045e:02d5 Microsoft Corp. Xbox One Digital TV Tuner dmesg (excerpt): [ 1.452325] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 2 [ 1.453824] usb 3-1: New USB device found, idVendor=9022, idProduct=d660, bcdDevice= 0.00 [ 1.453829] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1.453831] usb 3-1: Product: DVBS2BOX [ 1.453833] usb 3-1: Manufacturer: TBS-Tech ... [ 1.475380] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 2 [ 1.476504] usb 6-1: New USB device found, idVendor=9022, idProduct=d660, bcdDevice= 0.00 [ 1.476510] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1.476513] usb 6-1: Product: DVBS2BOX [ 1.476515] usb 6-1: Manufacturer: TBS-Tech [ 1.711179] usb 1-1.5: new full-speed USB device number 3 using ehci-pci [ 1.719179] usb 2-1.3: new full-speed USB device number 3 using ehci-pci ... [ 2.209899] usb 2-1.6: New USB device found, idVendor=045e, idProduct=02d5, bcdDevice= 1.10 [ 2.209903] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 2.209905] usb 2-1.6: Product: Xbox USB Tuner [ 2.209907] usb 2-1.6: Manufacturer: Microsoft Corp. [ 2.209908] usb 2-1.6: SerialNumber: 005099070515 [ 2.256025] usb 1-1.8: New USB device found, idVendor=046d, idProduct=c069, bcdDevice=56.01 [ 2.256030] usb 1-1.8: New USB device strings: Mfr=1, Product=2, SerialNumber=0 ... [ 3.208796] dvb-usb: found a 'TeVii S660 USB' in cold state, will try to load a firmware [ 3.209147] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' [ 3.209154] dw2102: start downloading DW210X firmware [ 3.211830] IR RC6 protocol handler initialized ... [ 3.221848] dvb-usb: found a 'Microsoft Xbox One Digital TV Tuner' in warm state. [ 3.221930] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 3.222327] dvbdev: DVB: registering new adapter (Microsoft Xbox One Digital TV Tuner) [ 3.222333] usb 2-1.6: media controller created ... [ 3.221848] dvb-usb: found a 'Microsoft Xbox One Digital TV Tuner' in warm state. [ 3.221930] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 3.222327] dvbdev: DVB: registering new adapter (Microsoft Xbox One Digital TV Tuner) [ 3.222333] usb 2-1.6: media controller created [ 3.222552] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. ... [ 3.367164] dvb-usb: found a 'TeVii S660 USB' in warm state. [ 3.367241] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 3.367597] dvbdev: DVB: registering new adapter (TeVii S660 USB) [ 3.367603] usb 3-1: media controller created [ 3.397279] mn88472 10-0018: Panasonic MN88472 successfully identified [ 3.400166] tda18250 10-0060: NXP TDA18250BHN/M successfully identified [ 3.403933] usb 2-1.6: DVB: registering adapter 0 frontend 0 (Panasonic MN88472)... [ 3.403941] dvbdev: dvb_create_media_entity: media entity 'Panasonic MN88472' registered. [ 3.404241] dvb-usb: Microsoft Xbox One Digital TV Tuner successfully initialized and connected. [ 3.404461] usbcore: registered new interface driver dvb_usb_dib0700 [ 3.414990] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=635 'alsactl' ... [ 3.616707] dvb-usb: MAC address: 00:18:bd:5a:be:8c [ 3.616946] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 3.628076] DS3000 chip version: 0.192 attached. [ 3.690739] ts2020 11-0060: Montage Technology TS2020 successfully identified [ 3.691064] dw2102: Attached ds3000+ts2020! [ 3.691070] usb 3-1: DVB: registering adapter 1 frontend 0 (Montage Technology DS3000)... [ 3.691078] dvbdev: dvb_create_media_entity: media entity 'Montage Technology DS3000' registered. [ 3.717182] Registered IR keymap rc-tevii-nec [ 3.717231] rc rc1: TeVii S660 USB as /devices/pci0000:00/0000:00:1c.5/0000:04:00.3/usb3/3-1/rc/rc1 [ 3.717346] rc rc1: lirc_dev: driver dw2102 registered at minor = 1, scancode receiver, no transmitter [ 3.717412] input: TeVii S660 USB as /devices/pci0000:00/0000:00:1c.5/0000:04:00.3/usb3/3-1/rc/rc1/input20 [ 3.717480] dvb-usb: schedule remote query interval to 150 msecs. [ 3.717484] dvb-usb: TeVii S660 USB successfully initialized and connected. [ 3.717531] dvb-usb: found a 'TeVii S660 USB' in cold state, will try to load a firmware [ 3.717566] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' [ 3.717569] dw2102: start downloading DW210X firmware [ 3.871216] dvb-usb: found a 'TeVii S660 USB' in warm state. [ 3.871389] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 3.871785] dvbdev: DVB: registering new adapter (TeVii S660 USB) [ 3.871794] usb 6-1: media controller created ... [ 4.109692] dvb-usb: MAC address: 00:18:bd:5a:be:8b [ 4.109930] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 4.113052] DS3000 chip version: 0.192 attached. [ 4.162597] ts2020 12-0060: Montage Technology TS2020 successfully identified [ 4.162967] dw2102: Attached ds3000+ts2020! [ 4.162975] usb 6-1: DVB: registering adapter 2 frontend 0 (Montage Technology DS3000)... [ 4.162984] dvbdev: dvb_create_media_entity: media entity 'Montage Technology DS3000' registered. [ 4.164314] Registered IR keymap rc-tevii-nec [ 4.164381] rc rc2: TeVii S660 USB as /devices/pci0000:00/0000:00:1c.5/0000:04:00.1/usb6/6-1/rc/rc2 [ 4.164474] rc rc2: lirc_dev: driver dw2102 registered at minor = 2, scancode receiver, no transmitter [ 4.164578] input: TeVii S660 USB as /devices/pci0000:00/0000:00:1c.5/0000:04:00.1/usb6/6-1/rc/rc2/input21 [ 4.164671] dvb-usb: schedule remote query interval to 150 msecs. [ 4.164676] dvb-usb: TeVii S660 USB successfully initialized and connected. [ 4.164756] usbcore: registered new interface driver dw2102 ... journalctl (filtered): # journalctl -b | grep -i -e dvb -e vdr Jun 13 05:15:21 system kernel: usb 2-1: Product: DVBS2BOX Jun 13 05:15:21 system kernel: usb 6-1: Product: DVBS2BOX Jun 13 05:15:21 system udevadm[415]: systemd-udev-settle.service is deprecated. Please fix vdr.service not to pull it in. Jun 13 05:15:21 system systemd[1]: Found device dev-vg\x2dsystem-vdr.device - /dev/vg-system/vdr. Jun 13 05:15:22 system kernel: dvb-usb: found a 'TeVii S660 USB' in cold state, will try to load a firmware Jun 13 05:15:22 system kernel: dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' Jun 13 05:15:22 system kernel: dvb-usb: found a 'Microsoft Xbox One Digital TV Tuner' in warm state. Jun 13 05:15:22 system kernel: dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. Jun 13 05:15:22 system kernel: dvbdev: DVB: registering new adapter (Microsoft Xbox One Digital TV Tuner) Jun 13 05:15:22 system kernel: dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. Jun 13 05:15:22 system systemd[1]: Starting systemd-fsck@dev-vg\x2dsystem-vdr.service - File System Check on /dev/vg-system/vdr... Jun 13 05:15:22 system kernel: dvb-usb: found a 'TeVii S660 USB' in warm state. Jun 13 05:15:22 system kernel: dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. Jun 13 05:15:22 system kernel: dvbdev: DVB: registering new adapter (TeVii S660 USB) Jun 13 05:15:22 system kernel: usb 3-1.6: DVB: registering adapter 0 frontend 0 (Panasonic MN88472)... Jun 13 05:15:22 system kernel: dvbdev: dvb_create_media_entity: media entity 'Panasonic MN88472' registered. Jun 13 05:15:22 system kernel: dvb-usb: Microsoft Xbox One Digital TV Tuner successfully initialized and connected. Jun 13 05:15:22 system kernel: usbcore: registered new interface driver dvb_usb_dib0700 Jun 13 05:15:22 system systemd-fsck[650]: vdr: clean, 472/19660800 files, 65559385/78643200 blocks Jun 13 05:15:22 system systemd[1]: Finished systemd-fsck@dev-vg\x2dsystem-vdr.service - File System Check on /dev/vg-system/vdr. Jun 13 05:15:22 system kernel: dvb-usb: MAC address: 00:18:bd:5a:be:8c Jun 13 05:15:22 system kernel: dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. Jun 13 05:15:22 system kernel: usb 2-1: DVB: registering adapter 1 frontend 0 (Montage Technology DS3000)... Jun 13 05:15:22 system kernel: dvbdev: dvb_create_media_entity: media entity 'Montage Technology DS3000' registered. Jun 13 05:15:22 system kernel: dvb-usb: schedule remote query interval to 150 msecs. Jun 13 05:15:22 system kernel: dvb-usb: TeVii S660 USB successfully initialized and connected. Jun 13 05:15:22 system kernel: dvb-usb: found a 'TeVii S660 USB' in cold state, will try to load a firmware Jun 13 05:15:22 system kernel: dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' Jun 13 05:15:22 system kernel: dvb-usb: found a 'TeVii S660 USB' in warm state. Jun 13 05:15:22 system kernel: dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. Jun 13 05:15:22 system kernel: dvbdev: DVB: registering new adapter (TeVii S660 USB) Jun 13 05:15:22 system systemd[1]: Mounting srv-vdr.mount - /srv/vdr... Jun 13 05:15:22 system systemd[1]: Mounted srv-vdr.mount - /srv/vdr. Jun 13 05:15:22 system kernel: dvb-usb: MAC address: 00:18:bd:5a:be:8b Jun 13 05:15:22 system kernel: dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. Jun 13 05:15:22 system kernel: usb 6-1: DVB: registering adapter 2 frontend 0 (Montage Technology DS3000)... Jun 13 05:15:22 system kernel: dvbdev: dvb_create_media_entity: media entity 'Montage Technology DS3000' registered. Jun 13 05:15:22 system kernel: dvb-usb: schedule remote query interval to 150 msecs. Jun 13 05:15:22 system kernel: dvb-usb: TeVii S660 USB successfully initialized and connected. Jun 13 05:15:28 system systemd[1]: Starting vdr.service - Video Disk Recorder... Jun 13 05:15:34 system vdr[1088]: [1088] VDR version 2.6.0 started Jun 13 05:15:34 system vdr[1088]: [1088] switched to user 'vdr' Jun 13 05:15:34 system vdr[1088]: [1088] codeset is 'UTF-8' - known Jun 13 05:15:34 system vdr[1088]: [1088] found 28 locales in /usr/share/locale Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'alb,sqi' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'bos' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'bul' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'chi,zho' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'eus,baq' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'iri,gle' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'jpn' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'lav' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'ltz' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'mlt' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'por' Jun 13 05:15:34 system vdr[1088]: [1088] no locale for language code 'smi' Jun 13 05:15:34 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-conflictcheckonly.so.2.6.0 Jun 13 05:15:34 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-epgsearch.so.2.6.0 Jun 13 05:15:34 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-epgsearchonly.so.2.6.0 Jun 13 05:15:34 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-femon.so.2.6.0 Jun 13 05:15:34 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-live.so.2.6.0 Jun 13 05:15:35 system vdr[1088]: [1088] live: INFO: validating server ip '0.0.0.0' Jun 13 05:15:35 system vdr[1088]: INFO: validating live server ip '0.0.0.0' Jun 13 05:15:35 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-osdteletext.so.2.6.0 Jun 13 05:15:35 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-quickepgsearch.so.2.6.0 Jun 13 05:15:35 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-streamdev-client.so.2.6.0 Jun 13 05:15:35 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-streamdev-server.so.2.6.0 Jun 13 05:15:35 system vdr[1088]: [1088] loading plugin: /usr/lib/vdr/plugins/libvdr-xineliboutput.so.2.6.0 Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/setup.conf Jun 13 05:15:35 system vdr[1088]: [1088] [xine..put] Skipping configuration entry Remote.ListenPort=37890 (overridden in command line) Jun 13 05:15:35 system vdr[1088]: [1088] [xine..put] Skipping configuration entry RemoteMode=1 (overridden in command line) Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/sources.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/diseqc.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/scr.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/channels.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/timers.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/commands.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/reccmds.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/svdrphosts.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/remote.conf Jun 13 05:15:35 system vdr[1088]: [1088] loading /var/lib/vdr/keymacros.conf Jun 13 05:15:35 system vdr[1088]: [1088] registered source parameters for 'A - ATSC' Jun 13 05:15:35 system vdr[1088]: [1088] registered source parameters for 'C - DVB-C' Jun 13 05:15:35 system vdr[1088]: [1088] registered source parameters for 'S - DVB-S' Jun 13 05:15:35 system vdr[1088]: [1089] video directory scanner thread started (pid=1088, tid=1089, prio=low) Jun 13 05:15:35 system vdr[1088]: [1088] registered source parameters for 'T - DVB-T' Jun 13 05:15:35 system vdr[1088]: [1090] epg data reader thread started (pid=1088, tid=1090, prio=high) Jun 13 05:15:35 system vdr[1088]: [1090] reading EPG data from /var/cache/vdr/epg.data Jun 13 05:15:35 system vdr[1088]: [1088] detected /dev/dvb/adapter2/frontend0 Jun 13 05:15:35 system vdr[1088]: [1088] detected /dev/dvb/adapter1/frontend0 Jun 13 05:15:35 system vdr[1088]: [1088] detected /dev/dvb/adapter0/frontend0 Jun 13 05:15:35 system vdr[1088]: [1088] probing /dev/dvb/adapter0/frontend0 Jun 13 05:15:35 system vdr[1088]: [1088] creating cDvbDevice Jun 13 05:15:35 system vdr[1088]: [1088] new device number 1 (card index 1) Jun 13 05:15:35 system kernel: mn88472 10-0018: downloading firmware from file 'dvb-demod-mn88472-02.fw' Jun 13 05:15:35 system vdr[1088]: [1088] DVB API version is 0x050B (VDR was built with 0x050B) Jun 13 05:15:35 system vdr[1088]: [1088] frontend 0/0 provides DVB-T,DVB-T2,DVB-C with QPSK,QAM16,QAM32,QAM64,QAM128,QAM256 ("Panasonic MN88472") Jun 13 05:15:35 system vdr[1088]: [1090] epg data reader thread ended (pid=1088, tid=1090) Jun 13 05:15:37 system vdr[1088]: [1089] video directory scanner thread ended (pid=1088, tid=1089) Jun 13 05:17:04 system systemd[1]: vdr.service: start operation timed out. Terminating. Jun 13 05:18:34 system systemd[1]: vdr.service: State 'stop-sigterm' timed out. Killing. Jun 13 05:18:34 system systemd[1]: vdr.service: Killing process 1088 (vdr) with signal SIGKILL. Jun 13 05:20:05 system systemd[1]: vdr.service: Processes still around after SIGKILL. Ignoring. git bisection: $ LANG= git bisect log git bisect start # Status: warte auf guten und schlechten Commit # bad: [e282393f9d0cd66cee8c68a80f4936f46c449b2d] Linux 6.3.7 git bisect bad e282393f9d0cd66cee8c68a80f4936f46c449b2d # Status: warte auf gute(n) Commit(s), schlechter Commit bekannt # good: [abfd9cf1c3d4d143a889b76af835078897e46c55] Linux 6.3.6 git bisect good abfd9cf1c3d4d143a889b76af835078897e46c55 # bad: [95055e6eb8319d5e929380bb7246362815890b75] ASoC: SOF: pm: save io region state in case of errors in resume git bisect bad 95055e6eb8319d5e929380bb7246362815890b75 # good: [7a5427ae3f1da6c61e38060a6c1865b0ab2e8f43] mtd: rawnand: marvell: don't set the NAND frequency select git bisect good 7a5427ae3f1da6c61e38060a6c1865b0ab2e8f43 # good: [8e4aa73e787cbdc9e58ed41ccc44a48ceab2d890] fbdev: modedb: Add 1920x1080 at 60 Hz video mode git bisect good 8e4aa73e787cbdc9e58ed41ccc44a48ceab2d890 # good: [722993741c696ebe4855a403c98408d720be2386] media: dvb-usb: az6027: fix three null-ptr-deref in az6027_i2c_xfer() git bisect good 722993741c696ebe4855a403c98408d720be2386 # good: [ec35bef6256ddc24114c7e6749c0baa1b467bcc4] media: mn88443x: fix !CONFIG_OF error by drop of_match_ptr from ID table git bisect good ec35bef6256ddc24114c7e6749c0baa1b467bcc4 # bad: [47dc2e5f5fb45aff7f9c32f10412125ee13cb5ce] media: dvb-core: Fix kernel WARNING for blocking operation in wait_event*() git bisect bad 47dc2e5f5fb45aff7f9c32f10412125ee13cb5ce # bad: [8bade849b15b3ecb62893f328b2cc4cdc65ac0c6] media: dvb-core: Fix use-after-free due on race condition at dvb_net git bisect bad 8bade849b15b3ecb62893f328b2cc4cdc65ac0c6 Reverting just this patch from v6.3.7 and v6.3.8-rc1 fixes the problem for me, vdr starts up and is fully usable. Regards Stefan Lippers-Hollmann [0] packaging at https://salsa.debian.org/vdr-team/vdr.git
