Hello, Since linux kernel 4.14-rc1 almost any I/O has a chance to freeze kernel (no log in /dev/tty0 nor /dev/ttyS0 not netconsole, no ARP answer over network) on one of my machines. Compiling linux kernel reproduces the issue reliably so far. Bisecting between v4.13 and v4.14-rc1 led me to commit 94b1b03b519b81c494900cb112aa00ed205cc2d9 Also I created a bug in bugzilla, bisect log is attached there: https://bugzilla.kernel.org/show_bug.cgi?id=197209 Unfortunately I can't test reverting of the commit on current mainline due to revert conflicts and I don't know how to resolve them correctly. My machine: CPU: AMD FX-9590 RAM: non-ECC DDR 12 Gb Storage layout: btrfs on top LVM on top LUKS on top HDD -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
