I've enabled CIFS debugging as you described and captured the dmesg output. I'll attach it to the bug report. On Tue, Nov 1, 2011 at 1:21 PM, Steve French <smfrench@xxxxxxxxx> wrote: > > Also remember that, even without a test case, we can often debug > from a combination of wire trace (see > http://wiki.samba.org/index.php/Capture_Packets) > and dmesg output (from enabling cifs debugging e.g. > > The dmesg or syslog (/var/log/messages) will show certain serious > errors, but enable additional cifs debugging flags to increase the > debug output. You can do this by doing: > > #dmesg -c /* this clears kernel ring buffer */ > #echo 3 > /proc/fs/cifs/cifsFYI /* Enables additional debugging */ > <do the operation> > #dmesg > cifs-debug.txt > Attach cifs-debug.txt > > > On Tue, Nov 1, 2011 at 1:04 PM, Nick Davis <nick@xxxxxxxxxxxxxx> wrote: > > Thanks for the reply, Jeff. I've filed a bug with the Samba tracker > > as you suggested: https://bugzilla.samba.org/show_bug.cgi?id=8559 > > > > The program I'm using to write the output files is a bioinformatics > > tool that I've developed as part of my research. Our research group > > plans to release it as an open source tool soon, but currently it's > > hosted in a private git repository. So at the moment it may be > > difficult to release for testing. > > > > On Tue, Nov 1, 2011 at 12:37 PM, Jeff Layton <jlayton@xxxxxxxxx> wrote: > >> On Tue, 1 Nov 2011 10:09:26 -0500 > >> Nick Davis <nick@xxxxxxxxxxxxxx> wrote: > >> > >>> Hello, > >>> > >>> I've recently noticed a corruption bug in the Linux kernel CIFS client > >>> that ships with Ubuntu 11.10 (kernel 3.0, based on upstream 3.0.4). > >>> I've filed a bug report with the details on Launchpad > >>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/879228 > >>> > >>> As suggested in the Launchpad bug comments, I installed a custom > >>> kernel based on the upstream 3.1, but after testing the bug is still > >>> present. It was then suggested that I file a bug report with the > >>> upstream subsystem maintainer. > >>> > >>> Let me know if I can provide any further information, or if I should > >>> report this issue somewhere else. > >>> > >> > >> This is the right place to report it, but as we're not all ubuntu users > >> it would be helpful for you to outline the problem in your mail to the > >> list. > >> > >> Looking over the launchpad report, it looks like this is something > >> you're able to reproduce at will. Is it possible to share that > >> reproducer? That would help us to be able to track down the problem and > >> verify that it's fixed once we understand it. > >> > >> What may be best is to open a bug at bugzilla.samba.org so we have a > >> place to track info relating to this. If you do that, please cc me on > >> the bug and I'll plan to take a look. > >> > >> Thanks, > >> -- > >> Jeff Layton <jlayton@xxxxxxxxx> > >> > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-cifs" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > > -- > Thanks, > > Steve -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
