Public bug reported:
I got below error, when plug usb-c headset to my system. and usb audio
is not able to use, however, the usb audio works on 5.10.0-1014-oem on
my system:
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: BUG: kernel NULL pointer
dereference, address: 0000000000000012
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: #PF: supervisor read access in
kernel mode
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: #PF: error_code(0x0000) -
not-present page
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: PGD 0 P4D 0
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Oops: 0000 [#1] SMP NOPTI
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: CPU: 2 PID: 364 Comm:
systemd-udevd Not tainted 5.10.0-1017-oem #18-Ubuntu
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Hardware name: Dell Inc. Latitude
9510/, BIOS 1.4.2 12/22/2020
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RIP:
0010:usb_audio_probe+0x2e3/0x5c0 [snd_usb_audio]
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Code: 48 83 7d b8 00 48 8b 7d c8
74 17 48 8b 45 b8 80 78 14 00 74 0d 48 8b 75 b0 e8 59 81 01 00 48 8b 7d c8 48
8b 45 b8 48 8b 75 b0 <0f> b7 40 12 66 89 87 9c 00 00 00 48 63 07 48 89 3c c5 60
5a fd c0
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RSP: 0000:ffffad254067fa40
EFLAGS: 00010246
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RAX: 0000000000000000 RBX:
ffffffffc0fd5c60 RCX: ffff8dff8a7372c8
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RDX: ffff8dff8a737ec8 RSI:
ffff8dff82e2f400 RDI: ffff8dff870c88b8
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RBP: ffffad254067faa0 R08:
000000000000006d R09: 0000000000000022
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: R10: 000000000000000b R11:
a032b784ff8dffff R12: 0000000000000000
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: R13: ffffffffc0fd5c60 R14:
0000000000000000 R15: ffffffffc0fd5d60
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: FS: 00007f017910d8c0(0000)
GS:ffff8e0105680000(0000) knlGS:0000000000000000
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: CR2: 0000000000000012 CR3:
000000010749e006 CR4: 00000000003706e0
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Call Trace:
** Affects: linux-oem-5.10 (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "kernel log"
https://bugs.launchpad.net/bugs/1918670/+attachment/5475854/+files/journalctl-1.log
** Description changed:
- I got below error, when plug usb-c headset to my system. I got error
- below and usb audio is not able to use, and the usb audio works on
- 5.10.0-1014-oem on my system:
+ I got below error, when plug usb-c headset to my system. and usb audio
+ is not able to use, however, the usb audio works on 5.10.0-1014-oem on
+ my system:
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: BUG: kernel NULL pointer
dereference, address: 0000000000000012
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: #PF: supervisor read access in
kernel mode
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: #PF: error_code(0x0000) -
not-present page
- Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: PGD 0 P4D 0
+ Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: PGD 0 P4D 0
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Oops: 0000 [#1] SMP NOPTI
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: CPU: 2 PID: 364 Comm:
systemd-udevd Not tainted 5.10.0-1017-oem #18-Ubuntu
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Hardware name: Dell Inc.
Latitude 9510/, BIOS 1.4.2 12/22/2020
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RIP:
0010:usb_audio_probe+0x2e3/0x5c0 [snd_usb_audio]
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Code: 48 83 7d b8 00 48 8b 7d
c8 74 17 48 8b 45 b8 80 78 14 00 74 0d 48 8b 75 b0 e8 59 81 01 00 48 8b 7d c8
48 8b 45 b8 48 8b 75 b0 <0f> b7 40 12 66 89 87 9c 00 00 00 48 63 07 48 89 3c c5
60 5a fd c0
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RSP: 0000:ffffad254067fa40
EFLAGS: 00010246
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RAX: 0000000000000000 RBX:
ffffffffc0fd5c60 RCX: ffff8dff8a7372c8
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RDX: ffff8dff8a737ec8 RSI:
ffff8dff82e2f400 RDI: ffff8dff870c88b8
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: RBP: ffffad254067faa0 R08:
000000000000006d R09: 0000000000000022
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: R10: 000000000000000b R11:
a032b784ff8dffff R12: 0000000000000000
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: R13: ffffffffc0fd5c60 R14:
0000000000000000 R15: ffffffffc0fd5d60
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: FS: 00007f017910d8c0(0000)
GS:ffff8e0105680000(0000) knlGS:0000000000000000
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: CR2: 0000000000000012 CR3:
000000010749e006 CR4: 00000000003706e0
Mar 11 20:20:46 kchsieh-Latitude-9510 kernel: Call Trace:
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https://bugs.launchpad.net/bugs/1918670
Title:
usb audio is not able to use after boot from 5.10.0-1017-oem
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