(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface).
On Wed, 13 Jul 2011 14:32:42 GMT bugzilla-dae...@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=39312 > > URL: https://bugs.gentoo.org/show_bug.cgi?id=373109 > Summary: intel-iommu: Dont cache iova above 32bit - network > copy freezes system > Product: Drivers > Version: 2.5 > Kernel Version: 2.6.39.2 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Other > AssignedTo: drivers_ot...@kernel-bugs.osdl.org > ReportedBy: marcus.d...@gmail.com > Regression: No > > > Created an attachment (id=65422) > --> (https://bugzilla.kernel.org/attachment.cgi?id=65422) > dmesg > > Hi, > > With the upgrade to 2.6.39.2, I cannot copy more than ~1GB of data > over the network before my input devices lock up. > Example: > use scp on tty1 to copy a folder or file larger than 3GB over my > gigabit network and after ~1min the keyboard stops responding. > use cp on tty1 with an nfs-3 share mounted over the same network and > try to copy the same file, same happens > > I can hit ctrl+c for about 20-30 sec and eventually get an interrupt > that stops the copying, then the input devices slowly gain control > again. If I do the same on X, there is no chance to get in between and > I have to use SysRq to reboot. > > In our bug report at https://bugs.gentoo.org/show_bug.cgi?id=373109 > We did a bisect between 2.6.39.1 and 2.6.39.2 and found the following > patch is causing this problem: > > commit 87cc4d1e3e05af38c7c51323a3d86fe2572ab033 > Author: Chris Wright <chr...@sous-sol.org> > Date: Sat May 28 13:15:04 2011 -0500 > > intel-iommu: Dont cache iova above 32bit > > I will also attach dmesg, current kernel config, and my bisect log (I > put a uname -a into the log after each bisect) plus git bisect log > A 2.3.39.1->2.6.39.2 regression. And, presumably, a 2.6.39->mainline regression. That's commit 1c9fc3d11b84fbd0c4f4aa7855702c2a1f098ebb in mainline. _______________________________________________ stable mailing list stable@linux.kernel.org http://linux.kernel.org/mailman/listinfo/stable
