During active I/O (linux kernel compilation reproduces the issue) machine fully freezes, no log messages in /dev/tty0, /dev/ttyS0 and netconsole, no ARP answers over network. Bisecting results: There are only 'skip'ped commits left to test. The first bad commit could be any of: 43858b4f25cf0adc5c2ca9cf5ce5fdf2532941e5 94b1b03b519b81c494900cb112aa00ed205cc2d9 cba4671af7550e008f7a7835f06df0763825bf3e We cannot bisect more I had to `git bisect skip` these commits because kernel didn't compile: 43858b4f25cf0adc5c2ca9cf5ce5fdf2532941e5 94b1b03b519b81c494900cb112aa00ed205cc2d9 I can't revert them without conflicts, commit 43858b4f25cf0adc5c2ca9cf5ce5fdf2532941e5 can be reverted but kernel doesn't build without it. I encountered this issue only on one machine, 4.13 and earlier kernels are working fine on this machine. Machine: CPU: AMD FX-9590 RAM: non-ECC DDR3 12 Gb Video: AMD rx480 Persistent storage layout: 3. Btrfs 2. LVM 1. LUKS 0. HDD Btrfs is not multidevice.
Created attachment 258809 [details] bisect.log Turns out compile errors were introduced by me, redid bisecting and now narrowed it down to commit 94b1b03b519b81c494900cb112aa00ed205cc2d9 Reverting the commit still produces conflicts which I don't know how to resolve correctly.
There is a patch for current linux mainline which fixes the issue: https://marc.info/?l=linux-kernel&m=150756861022239&w=2
Created attachment 258815 [details] Fix
Patch merged in mainline, commit: b956575bed91ecfb136a8300742ecbbf451471ab