FS#34363 - [linux] 3.8.3 IOMMU error with kernel and atl1c network driver

Attached to Project: Arch Linux
Opened by Benoit Pierre (bpierre) - Monday, 18 March 2013, 19:45 GMT
Last edited by Tobias Powalowski (tpowa) - Thursday, 21 March 2013, 08:08 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 5
Private No

Details

Description:

After using the network for some time (a few minutes at high rate) error messages start to appear in the kernel log:

Mar 18 19:12:08 silencio kernel: DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:00:1a.0

The problem appeared when upgrading to linux-3.8.2 (from 3.7.10-1). It is fixed in the kernel git upstream by this commit:

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=7cb08d7f3a5ea6131f4f243c2080530ac41cb293

(Tested by recompiling with makepkg and the aforementioned patch)
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Thursday, 21 March 2013, 08:08 GMT
Reason for closing:  Fixed
Additional comments about closing:  3.8.4-1
Comment by Anatol Pomozov (anatolik) - Thursday, 21 March 2013, 02:12 GMT
The fix is released as part of linux stable 3.8.4 http://lwn.net/Articles/543660/

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