+Cc: Erik On Tue, Jun 26, 2018 at 8:57 PM, Toralf Förster <toralf.foerster@xxxxxx> wrote: > The attached dmesg contains non printable chars 0x01 33 around "ACPI BIOS Error (bug): Could not resolve" which is a new issue compared to the dmesg of 4.17.2 > > System is a stable hardened Gentoo Linux at a ThinkPad T440s. I bet the below commit makes this. commit 2e78935d1e27d31955ad2dad4abe6c453cf669fd Author: Erik Schmauss <erik.schmauss@xxxxxxxxx> Date: Fri Jun 1 12:06:43 2018 -0700 ACPICA: AML parser: attempt to continue loading table after error So, it does add leading '\n' which flushes buffers followed by printing the message you see. But, I'm guessing now, kernel adds a default level since it's going to dmesg which you can see as unprintable symbols. Personally I'm not a fan of leading '\n':s since it brings more pain than fixing something. It has special meaning (flushing buffers) and many developers forget this. -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html