Re: panic: data abort in critical section or under mutex (was: Re: panic: Unknown kernel exception 0 esr_el1 2000000 (on 14-CURRENT/aarch64 Feb 28))

From: Ronald Klop wrote on Date: Sun, 6 Mar 2022 23:22:42 +0100 (CET) : > Did some binary search with kernels from artifact.ci.freebsd.org. > > I suspect "rmlock: Micro-optimize read locking" as cause. > > https://cgit.freebsd.org/src/commit/?id=c84bb8cd771ce4bed58152e47a32dda470bef23a > > >

Re: panic: data abort in critical section or under mutex (was: Re: panic: Unknown kernel exception 0 esr_el1 2000000 (on 14-CURRENT/aarch64 Feb 28))

Hi, Did some binary search with kernels from artifact.ci.freebsd.org. I suspect "rmlock: Micro-optimize read locking" as cause. https://cgit.freebsd.org/src/commit/?id=c84bb8cd771ce4bed58152e47a32dda470bef23a And "rmlock: Add required compiler barriers to _rm_runlock()" as solution.