On Wed, Aug 12, 2015 at 3:00 PM, Afzal Mohammed <afzal.mohd.ma at gmail.com> wrote: > Hi, > > On Wed, Aug 12, 2015 at 01:17:38PM +0900, Alexandre Courbot wrote: >> This reverts commit 1addc1264852 >> >> This commit seems to cause crashes in gk104_fifo_intr_runlist() by >> returning 0xbad0da00 when register 0x2a00 is read. Since this commit was >> intended for GM20B which is not completely supported yet, let's revert >> it for the time being. >> >> Reported-by: Eric Biggers <ebiggers3 at gmail.com> >> Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> >> --- >> David, it would be great if this could be merged for 4.2 since lots of >> users could potentially experience this issue. Thanks! > > Tested-by: Afzal Mohammed <afzal.mohd.ma at gmail.com>
Thanks! > > Please help $subject reach mainline for 4.2, w/o this revert, the > system here hangs most (>90%) of the time at boot time. > > As an aside, yesterday after a marathon git bisect, came to the same > solution (though I don't understand what that change means). Was > about to report it and saw this one. Thanks Alexandre. All credit goes to Eric for bisecting and reporting this issue. > > W/o the revert, in the rare case where it boots, below is observed in > addition to as compared to w/ revert, > > [ 9.826010] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 > FAULT at 0x122130 [ !ENGINE ] Could you let me know what your card is? It may be useful to know the range of affected cards when trying to fix this. Thanks, Alex.