Am 16.07.2018 um 16:25 schrieb Michel Dänzer:
On 2018-07-16 02:10 PM, Tom St Denis wrote:
Hi all,
Back from vacation, booting up the latest drm-next kernel and noticed
this warning on boot. Attached.
I like the comment in the commit 5c200f56506a142451f17dbea7befa76dd74a942:
"This shouldn't happen, but if it does, we'll get a backtrace of the
caller, and update the pin_size values as needed."
Once again, turns out it is better to be safe than sorry. :)
Exactly the same thought I had while seeing the backtrace :)
Unfortunately, the backtrace isn't really usable, all entries have a
question mark.
Question marks aside both backtraces seem to come from DC, but I agree
that this is pure speculation.
What does
grep -e UNWINDER -e DEBUG_INFO -e FRAME_POINTER .config
say in your build tree? FWIW, it's the below for me, and in my
backtraces some entries have no question mark, and those seem reliable.
Additional to that what gcc and/or binutils version do you have?
Christian.
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# CONFIG_UNWINDER_GUESS is not set
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