From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?Q?Aur=C3=A9lien?= Aptel Subject: Re: Regression in 4.14-rc: CIFS SMB2+ combined with pythons xattr.listxattr leads to "IOError: [Errno 61] No data available" Date: Wed, 18 Oct 2017 14:52:58 +0200 Message-ID: References: <4d13dddc-2df2-4112-a214-15700c22ed50@leemhuis.info> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Cc: Steve French , linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Thorsten Leemhuis , Ronnie Sahlberg Return-path: In-Reply-To: <4d13dddc-2df2-4112-a214-15700c22ed50-rCxcAJFjeRkk+I/owrrOrA@public.gmane.org> Sender: linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Hi Thorsten, If you still run into this problem, could you provide a network trace and kernel output? # make the kernel as verbose as possible echo 'module cifs +p' > /sys/kernel/debug/dynamic_debug/control echo 'file fs/cifs/* +p' > /sys/kernel/debug/dynamic_debug/control echo 1 > /proc/fs/cifs/cifsFYI echo 1 > /sys/module/dns_resolver/parameters/debug # get kernel output + network trace dmesg --clear tcpdump -w trace.pcap & pid=$! sleep 3 mount.cifs ....cd ... ls.. blahblah sleep 3 kill $pid dmesg > trace.log this should produce a trace.pcap and trace.log file. -- Aurélien Aptel / SUSE Labs Samba Team GPG: 1839 CB5F 9F5B FB9B AA97 8C99 03C8 A49B 521B D5D3 SUSE Linux GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)