Date: Tue, 10 Apr 2018 17:32:57 +0000 From: Dexuan Cui <decui@microsoft.com> To: Bruce Evans <brde@optusnet.com.au>, "jeff@freebsd.org" <jeff@freebsd.org>, "bugs@freebsd.org" <bugs@freebsd.org> Cc: "Hongxiong Xian (Wicresoft)" <v-hoxian@microsoft.com> Subject: RE: [Bug 227404] UP FreeBSD VM always hangs on reboot since 20180329-r331740 Message-ID: <SG2P15301MB0015EA97582E940755361F64BFBE0@SG2P15301MB0015.APCP153.PROD.OUTLOOK.COM> In-Reply-To: <20180410173347.D1459@besplex.bde.org> References: <bug-227404-39@https.bugs.freebsd.org/bugzilla/> <bug-227404-39-TxuoE7IXT0@https.bugs.freebsd.org/bugzilla/> <20180410173347.D1459@besplex.bde.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> From: Bruce Evans > Sent: Tuesday, April 10, 2018 00:45 >=20 > On Tue, 10 Apr 2018 a bug that doesn't want replies@freebsd.org wrote: >=20 > (The bug didn't even Cc freebsd-bugs for this followup.) Thanks for the reminder! I Cc'd bugs@ just now. > > --- Comment #4 from Dexuan Cui --- > ... >=20 > I think I saw this a few months before that. >=20 > My only history of this is that I built a UP kernel on 17 Dec 2017 to see > if UP kernels had the bug. So SMP kernels probably had the bug then. >=20 > Bruce Here the bug is that UP FreeBSD VM hangs on reboot or power-off, and I'm sure this recent patch (which was commited by Jeff on Mar 26) caused th= is bug: https://github.com/freebsd/freebsd/commit/63a483ed5f4eaadb8979992c7a5de24c7= a471c61 ("Fix a bug introduced in r329612 that slowly invalidates all clean bufs"). However, SMP VM with 2 or more CPUs doesn't hang on reboot/power-off according to our tests. Thanks, -- Dexuan
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?SG2P15301MB0015EA97582E940755361F64BFBE0>