On Wed, 2010-07-14 at 03:43 +0530, Ritesh Raj Sarraf wrote: > On Tuesday 13 Jul 2010 00:22:01 Ritesh Raj Sarraf wrote: > > I applied the 3 patches and tested the kernel. Test results look good. > > Have not been able to reproduce the bug. > > Sorry. It hit back again. > > > [76572.837634] TOMOYO-WARNING: Domain '<kernel> /etc/init.d/kdm > /sbin/start-stop-daemon /usr/bin/kdm /etc/kde4/kdm/Xsession /bin/bash > /usr/bin/ssh-agent /usr/bin/gpg-agent /usr/bin/dbus-launch /usr/bin/startkde > /usr/lib/kde4/libexec/start_kdeinit_wrapper > /usr/lib/kde4/libexec/start_kdeinit /usr/bin/kdeinit4 /usr/bin/konsole > /bin/bash /usr/bin/sudo /usr/bin/aptitude /usr/bin/dpkg' has so many ACLs to > hold. Stopped learning mode. > [76606.764868] dpkg-deb: page allocation failure. order:1, mode:0x4020 [...]
This is unavoidable if you have with this hardware and you enable A-MSDU frame lengths up to 8K (which is the default). These patches reduce the probability of allocation failure since the RX buffers now only require a block of 2 pages rather than 4. If you restrict the maximum frame length to 4K (module parameter amsdu_size_8K=0) then allocation failure becomes less likely still. But it may be worth considering installing more RAM. Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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