New
#1
Kernel Auto Boost Lock Acquisition... on Restart, after AU update
On Restart, at the login screen, when entering the password, I get a sad face BSOD with
Kernel Auto Boost Lock Acquisition with Raised IRQL.
The crash occurs on entering the first 1 or 2 characters of the password, before enter.
The problem persists, (repeats) after the crash restart until I do a shut down, usually on the login screen, before I enter a password.
The problem does not show up with a Shut down, power on sequence, only when I do a restart.
I have a dual boot environment (configured with the MS bcdedit boot manager), for Win8.1 and Win10. Win8.1 remains stable, so this is unlikely a hardware problem.
The problem showed up immediately after the anniversary update (AU, version 1607) was installed. My Win10 was stable from July 2016 until 10/1/16 when AU installed.
I've looked at drivers. Very few have timestamps newer than July 2015, i.e. they should already have been in place for AU. Only one has a roll back option and it's timestamp is 8/11/13.
The problem is not completely repeatable.
<5% of the times after a restart, I can login successfully
<10% of the times after and crash and then shut down, it will still occur at the next login.
Doing 2 consecutive shut downs fixes the double crash > 95%.
I had to do 3 shutdowns once in the last 80 crashes to get stable again.
<5% of the time I get a second crash during the restart from the first crash
<.005% of active use I'll get a crash in the middle of a session. I think these occurred before I discovered the shutdown work around.
I no longer have a restore available to backout the AU.
I tried to gather the log files with dm_log_collector. It ran to the end but produced an empty zip file. Possible conflict with my BandiZip util. Will add the dumps later when I can get it to work.
Thanks, Larry