From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Fri, 14 Sep 2018 13:49:51 +0200 From: Valentin Vidic To: Roger Pau =?iso-8859-1?Q?Monn=E9?= Cc: drbd-user@lists.linbit.com, Jens Axboe , Konrad Rzeszutek Wilk , linux-kernel@vger.kernel.org, stable@vger.kernel.org, linux-block@vger.kernel.org, xen-devel@lists.xenproject.org Message-ID: <20180914114951.GH2153@gavran.carpriv.carnet.hr> References: <20180907121348.GM26705@gavran.carpriv.carnet.hr> <20180907132828.GC11834@soda.linbit> <20180907164500.GN26705@gavran.carpriv.carnet.hr> <20180907171459.GO26705@gavran.carpriv.carnet.hr> <20180908073432.GP26705@gavran.carpriv.carnet.hr> <20180910124531.GA31737@soda.linbit> <20180910132252.GE26705@gavran.carpriv.carnet.hr> <20180910150058.suxehc3uheyho4qx@mac.bytemobile.com> <20180910161831.GG26705@gavran.carpriv.carnet.hr> <20180913150800.haswzd7t2xccbgvl@mac.bytemobile.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: <20180913150800.haswzd7t2xccbgvl@mac.bytemobile.com> Subject: Re: [DRBD-user] [PATCH] xen-blkback: Switch to closed state after releasing the backing device List-ID: On Thu, Sep 13, 2018 at 05:08:00PM +0200, Roger Pau Monn� wrote: > So I have the following patch which I think might solve your issues > while keeping the reset logic working. Would you mind giving it a try > with your use case and pvgrub? Thanks for the patch. It seems to be having some problems with pvgrub: machines don't boot past pvgrub and they are using 100% CPU. Also in dom0 xenstored is usind 100% CPU - strace reports it is looping in this: read(26, "\\\240\0\0", 4) = 4 read(26, "\0\0\0\0L\0\0\0)\0\0\0\35\0\0\0+\\\232`\231\31\1&", 24) = 24 read(26, "/local/domain/0/backend/vbd/1/51712/state", 41) = 41 read(26, "\2\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\1\0\0\0004", 29) = 29 read(26, "\0\330\0\0", 4) = 4 read(26, "\0\0\0\0L\0\0\0)\0\0\0\35\0\0\0+\\JG\231\31\1&", 24) = 24 read(26, "/local/domain/0/backend/vbd/2/51712/state", 41) = 41 read(26, "\2\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\2\0\0\0\1\0\0\0004", 29) = 29 read(26, "\0\200\1\0", 4) = 4 read(26, "\0\0\0\0L\0\0\0)\0\0\0\35\0\0\0+\\Z\373\231\31\1&", 24) = 24 read(26, "/local/domain/0/backend/vbd/5/51712/state", 41) = 41 read(26, "\2\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\5\0\0\0\1\0\0\0004", 29) = 29 read(12, "\321\1\0\0", 4) = 4 write(12, "\321\1\0\0", 4) = 4 -- Valentin