[Mesa-dev] [Bug 107098] Segfault after munmap(kms_sw_dt->ro_mapped)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Jul 4 09:06:35 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=107098

--- Comment #1 from Nubosch <andreas.kling at gmail.com> ---
I can confirm this issue. Using tinydrm display with
weston 4.0.90
linux 4.17.2

KMS-DEBUG: unmapped buffer 2 (was 0x69eaa000)
KMS-DEBUG: unmapped buffer 2 (was (nil))
KMS-DEBUG: destroyed buffer 2

The process shows really weird behavior after this, like missing memory
regions.

>* adding condition on above munmap() to call it only if ro_mapped is not NULL
This was the solution I went with too, but added it for both pointers ;)

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