<vpeter>
Can someone give me advice? I would like to compile kernel 3.0.35 with gcc 4.9. But after running it it crash very early with Unable to handle kernel NULL pointer dereference at virtual address 00000001.
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<aholler>
vpeter: there are two older fixes for memset with gcc >=4.7 and one which was just discovered with 3.16
<aholler>
look at the latest patchset for 3.2 to find the memset-fix
<aholler>
but in general it isn't a very good idea to compile stone old kernels with brand new compilers
<aholler>
same for u-boot.
<vpeter>
Thank you. I will look around now that I know what to look for.
<vpeter>
Can agree about mixing stone age with new age :) But doing some experiments...
<aholler>
the one for 3.16 is from linus and even ended up in some news
<aholler>
because news-people do like his flames ;)
<vpeter>
Like Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"
<aholler>
yes, broken as most linux arm-kernels ;)
<vpeter>
So it seems.
<vpeter>
But who am I to judge.
<aholler>
a victim ;)
<vpeter>
At least I'm doing this for hobby.
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<perul>
dv_: I finally got a working kernel building environment and could test the wandboard patches, but unfortunately I still get the same mem allocator failures.
<aholler>
I had to disable dma in order to use brcm_patchram_plus, so there still might be some bug inside the dma-engine
<aholler>
but it also might be a problem in the tty-subsystem (which still goes through some changes/bugfixes), so I haven't had a deeper look at it and prefered to go the easy route with disabling dma for the one uart
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