Launchpad has imported 6 comments from the remote bug at https://bugzilla.kernel.org/show_bug.cgi?id=201291.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2018-09-30T03:50:49+00:00 clemej wrote: Created attachment 278845 ACPI dump New HP EliteBook 745 G5, BIOS version 1.03.01. Ryzen PRO 2500u. Booting any modern kernel (4.10+) hangs at boot on this system with no kernel messages displayed unless you disable MCE support (via mce=off). Knowing Debian's 4.9 kernel boots fine, I bisected Linus's tree, and it appears this commit is the culprit: 18807ddb7f88d4ac3797302bafb18143d573e66f is the first bad commit commit 18807ddb7f88d4ac3797302bafb18143d573e66f Author: Yazen Ghannam <[email protected]> Date: Tue Nov 15 15:13:53 2016 -0600 x86/mce/AMD: Reset Threshold Limit after logging error The error count field in MCA_MISC does not get reset by hardware when the threshold has been reached. Software is expected to reset it. Currently, the threshold limit only gets reset during init or when a user writes to sysfs. If the user is not monitoring threshold interrupts and resetting the limit then the user will only see 1 interrupt when the limit is first hit. So if, for example, the limit is set to 10 then only 1 interrupt will be recorded after 10 errors even if 100 errors have occurred. The user may then assume that only 10 errors have occurred. .. although the previous few commits to this one also are all related to MCE support on AMD systems, so it may be a culmination of a few commits. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796443/comments/0 ------------------------------------------------------------------------ On 2018-09-30T04:01:15+00:00 clemej wrote: Created attachment 278847 dmesg from booting from last good commit Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796443/comments/1 ------------------------------------------------------------------------ On 2018-09-30T04:07:25+00:00 clemej wrote: Created attachment 278849 dmesg from normal debian 4.9 boot Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796443/comments/2 ------------------------------------------------------------------------ On 2018-10-08T15:00:42+00:00 caravena wrote: Hello, Original Report: https://bugs.launchpad.net/bugs/1796443 Best regards, -- Cristian Aravena Romero (caravena) Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796443/comments/7 ------------------------------------------------------------------------ On 2018-10-11T07:18:57+00:00 kai.heng.feng wrote: I think it's better to mail to the patch author and cc x86 mailing list. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796443/comments/11 ------------------------------------------------------------------------ On 2018-10-12T12:38:28+00:00 amit.prakash.ambasta wrote: *** Bug 201213 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796443/comments/12 ** Changed in: linux Status: Unknown => Confirmed ** Changed in: linux Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796443 Title: HP EliteBook 745 G5 (Ryzen 2500U) fails to boot unless `mce=off` is set on command line To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1796443/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
