Date: Thu, 7 Jun 2018 11:30:26 -0700 From: bob prohaska <fbsd@www.zefox.net> To: Konstantin Belousov <kostikbel@gmail.com> Cc: Ronald Klop <ronald-lists@klop.ws>, freebsd-arm@freebsd.org, bob prohaska <fbsd@www.zefox.net> Subject: Re: panic: Assertion td->td_lock == TDQ_LOCKPTR(tdq) failed at /usr/src/sys/kern/sched_ule.c:2137 Message-ID: <20180607183025.GA95066@www.zefox.net> In-Reply-To: <20180603121712.GL3789@kib.kiev.ua> References: <op.zjvyeypwkndu52@klop.ws> <20180601154153.GA62632@www.zefox.net> <20180602091606.63a1ab37.freebsd.ed.lists@sumeritec.com> <20180602150549.GA68197@www.zefox.net> <CANCZdfq%2BFp6=NDSQB0G9z1L7StcueupzvUiuNs9L-TgTQL=wzA@mail.gmail.com> <20180602193255.GA68908@www.zefox.net> <CANCZdfpJ7hL_dnJd5kyMkhdT21LnXWxch7ztmN%2BrTk90F53WjQ@mail.gmail.com> <20180602210450.GK3789@kib.kiev.ua> <op.zj0sdpobkndu52@klop.ws> <20180603121712.GL3789@kib.kiev.ua>
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On Sun, Jun 03, 2018 at 03:17:12PM +0300, Konstantin Belousov wrote: > > On Sat, 02 Jun 2018 23:04:50 +0200, Konstantin Belousov > > <kostikbel@gmail.com> wrote: > > > > > > > > diff --git a/sys/arm64/arm64/swtch.S b/sys/arm64/arm64/swtch.S > > > index c9843303b1d..4c2c3aca583 100644 > > > --- a/sys/arm64/arm64/swtch.S > > > +++ b/sys/arm64/arm64/swtch.S > > > @@ -165,10 +165,9 @@ ENTRY(cpu_switch) > > > mov x0, x19 > > > /* > > > - * Release the old thread. This doesn't need to be a store-release > > > - * as the above dsb instruction will provide release semantics. > > > + * Release the old thread. > > > */ > > > - str x2, [x0, #TD_LOCK] > > > + stlr x2, [x0, #TD_LOCK] > > > #if defined(SCHED_ULE) && defined(SMP) > > > /* Spin if TD_LOCK points to a blocked_lock */ > > > ldr x2, =_C_LABEL(blocked_lock) > > Has this been committed to -current? If not, I'm game to try it but will need some more detailed instructions; it doesn't look like something applied by saving to a file and feeding it to patch. Thanks for reading, bob prohaska
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