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virtio-gpu kernel driver reports 16 for count_crtcs
which exceeds IGT_MAX_PIPES set to 8 in igt-gpu-tools.
This results in below memory corruption,
malloc(): corrupted top size
Received signal SIGABRT.
Stack trace:
#0 [fatal_sig_handler+0x17b]
#1 [__sigaction+0x40]
#2 [pthread_key_delete+0x14c]
#3 [gsignal+0x12]
#4 [abort+0xd3]
#5 [__fsetlocking+0x290]
#6 [timer_settime+0x37a]
#7 [__default_morecore+0x1f1b]
#8 [__libc_calloc+0x161]
#9 [drmModeGetPlaneResources+0x44]
#10 [igt_display_require+0x194]
#11 [__igt_unique____real_main1356+0x93c]
#12 [main+0x3f]
#13 [__libc_init_first+0x8a]
#14 [__libc_start_main+0x85]
#15 [_start+0x21]
This is fixed in igt-gpu-tools by increasing IGT_MAX_PIPES to 16.
https://patchwork.freedesktop.org/series/126327/
Uprev IGT to include the patches which fixes this issue.
Acked-by: Helen Koike <[email protected]>
Signed-off-by: Vignesh Raman <[email protected]>
Signed-off-by: Helen Koike <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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