Messages in this thread |  | | Date | Thu, 9 Jul 2020 14:17:22 -0500 | From | Bjorn Helgaas <> | Subject | [: [Bug 208507] New: BISECTED: i2c timeout loading module ddbridge with commit d2345d1231d80ecbea5fb764eb43123440861462] |
| |
Bisected to Debian commit d2345d1231d8, which is a backport of the upstream commit b88bf6c3b6ff ("PCI: Add boot interrupt quirk mechanism for Xeon chipsets").
Reporter confirmed that reverting the Debian backport from 4.19.132 fixes the problem.
----- Forwarded message from bugzilla-daemon@bugzilla.kernel.org -----
Date: Thu, 09 Jul 2020 15:01:11 +0000 From: bugzilla-daemon@bugzilla.kernel.org To: bjorn@helgaas.com Subject: [Bug 208507] New: BISECTED: i2c timeout loading module ddbridge with commit d2345d1231d80ecbea5fb764eb43123440861462 Message-ID: <bug-208507-41252@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=208507
Bug ID: 208507 Summary: BISECTED: i2c timeout loading module ddbridge with commit d2345d1231d80ecbea5fb764eb43123440861462 Product: Drivers Version: 2.5 Kernel Version: 4.19.132 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: PCI Assignee: drivers_pci@kernel-bugs.osdl.org Reporter: bernhard@turmann.eu Regression: Yes
Created attachment 290179 --> https://bugzilla.kernel.org/attachment.cgi?id=290179&action=edit dmesg on 4.19.132
OS: Debian 10.4 Buster CPU: Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz Hardware: Supermicro Super Server Mainboard: Supermicro X10SDV DVB card: Digital Devices Cine S2 V7 Advanced DVB adapter
Issue: ===== Loading kernel module ddbridge fails with i2c timeouts, see attached dmesg. The dvb media adapter is unusable. This happened after Linux kernel upgrade from 4.19.98-1+deb10u1 to 4.19.118-2+deb10u1.
A git bisect based on the Debian kernel repo on branch buster identified as first bad commit: [1fb0eb795661ab9e697c3a053b35aa4dc3b81165] Update to 4.19.116.
Another git bisect based on upstream Linux kernel repo on branch v4.19.y identified as first bad commit: [d2345d1231d80ecbea5fb764eb43123440861462] PCI: Add boot interrupt quirk mechanism for Xeon chipsets.
Other affected Debian kernel version: 5.6.14+2~bpo10+1 I tested this version via buster-backports, because so far I was unable to build my own kernel from 5.6.y or even 5.7.y.
Workaround: ========== Reverting the mentioned commit d2345d1231d80ecbea5fb764eb43123440861462 on top of 4.19.132 is fixing the problem. Reverting the same commit on 4.19.118 or 4.19.116 is also fixing the problem.
It seems, I can only add one attachment now, so I will add more attachments later after bug is submitted.
Thanks and Regards Berni
-- You are receiving this mail because: You are watching the assignee of the bug.
----- End forwarded message -----
|  |