WARNINGs in set_task_reclaim_state with memory cgroup and full memory usage

2019-08-23 Thread Adric Blake
Synopsis: A WARN_ON_ONCE is hit twice in set_task_reclaim_state under the following conditions: - a memory cgroup has been created and a task assigned it it - memory.limit_in_bytes has been set - memory has filled up, likely from cache In my usage, I create a cgroup under the current session scope

B43 driver no longer works in Linux 4.15 (bisected)

2018-02-05 Thread Adric Blake
In the time between Linux 4.15-rc8 and -rc9, my wireless driver, b43, would no longer load automatically. When I modprobe the b43 (and ssb) modules, the device still didn't appear in NetworkManager. Comparing the kernel logs between working (4.14.16-lts) and nonworking (4.15) kernels reveals that t