Return-Path: Received: from mail-oi0-f50.google.com ([209.85.218.50]:35297 "EHLO mail-oi0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751006AbcFRKEe (ORCPT ); Sat, 18 Jun 2016 06:04:34 -0400 Received: by mail-oi0-f50.google.com with SMTP id v7so38925094oig.2 for ; Sat, 18 Jun 2016 03:04:33 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20160617191220.GB899@fieldses.org> References: <20160617191220.GB899@fieldses.org> From: Damjan Georgievski Date: Sat, 18 Jun 2016 12:04:32 +0200 Message-ID: Subject: Re: nfsd crash with 4.6 and 4.7 (bisected) To: "J. Bruce Fields" Cc: linux-nfs@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: >> I'm experiencing a kernel crash with the kernel nfs daemon in 4.6.1, >> 4.6.2 and 4.7.0-rc3-g5edb564 >> 4.5.4 is ok. >> >> My server is ArchLinux, nothing special, nfs-server.service enabled, >> this in exports: >> /home/nfs/archlinux-rpi >> 192.168.15.0/24(rw,no_subtree_check,nohide,insecure,no_root_squash,async) >> >> The client is a raspberrypi with 4.4.13-2-ARCH kernel, a nfs root, >> ArchLinuxArm and this kernel cmdline: >> nfsroot=192.168.15.103:/home/nfs/archlinux-rpi,vers=4.2,proto=tcp,rsize=1048576,wsize=1048576 >> >> the crash happens every time I *reboot* the raspberrypi. just booting >> it in the first place doesn't crash the server. >> please cc me for other info, since I'm not subscribed. > > Could you check latest upstream? I think there's a good chance this is > fixed by 39a9beab5acb "rpc: share one xps between all backchannels". thanks Bruce, 4.7.0-rc3-gbb96727 seems to work fine. I hope this gets submitted to stable too? -- damjan