12 Jul
2018
12 Jul
'18
6:34 a.m.
https://bugs.freedesktop.org/show_bug.cgi?id=105760
--- Comment #33 from Alex Deucher alexdeucher@gmail.com --- (In reply to Thomas Martitz from comment #21)
I assume this is some mapped memory and some HW component in the GPU writes to it while the CPU is using it, isn't it? If so, the proper fix would be to prevent that but I don't know what's the proper way of doing it in this context.
The CPU is writing to a buffer that the GPU ultimately reads. Even if the data in the buffer were corrupted by the GPU somehow, the CPU's pointer should still be valid. Can you add slub_debug=FPZU to the kernel command line in grub and attach your dmesg output?
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