On 26/02/2019 22:25, Andrew Randrianasulu wrote: (adding qemu-ppc, Richard and David - please make sure you add the relevant maintainer on bug reports, as otherwise due to the high volume of mails to the list it's very easy to miss things)
> Hello. > > I bisected this problem with fonts (and multicolored vertical stripes) in > qemu > git (ppc64-softmmu) > > guest@slax:/dev/shm/qemu$ git bisect good > 7b8fe477e12b164dda97f79e27b55b805d90384f is the first bad commit > commit 7b8fe477e12b164dda97f79e27b55b805d90384f > Author: Richard Henderson <richard.hender...@linaro.org> > Date: Fri Feb 15 10:00:46 2019 +0000 > > target/ppc: convert VSX logical operations to vector operations > > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> > Acked-by: David Gibson <da...@gibson.dropbear.id.au> > Message-Id: <20190215100058.20015-6-mark.cave-ayl...@ilande.co.uk> > Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> > > :040000 040000 da3024ad2c9dfc3b7170516a8b321ef8c5d5bdf8 > a0257b9f5880ecc8e7001a59ccaa10407084623f M target > > > guest@slax:/dev/shm/qemu$ git bisect log > git bisect start > # good: [32a1a94dd324d33578dca1dc96d7896a0244d768] Update version for v3.1.0 > release > git bisect good 32a1a94dd324d33578dca1dc96d7896a0244d768 > # bad: [86c7e2f4a93322a76afea5ee6806a83420d1dfea] Merge remote-tracking > branch 'remotes/berrange/tags/authz-core-pull-request' into staging > git bisect bad 86c7e2f4a93322a76afea5ee6806a83420d1dfea > # good: [95ebd99dcd37b8574426c876502bfcc7c299584b] target/arm: Decode PAuth > within disas_data_proc_1src > git bisect good 95ebd99dcd37b8574426c876502bfcc7c299584b > # good: [268dfefa690b2bdee1f8c5090d2343871cf3467c] > hw/microblaze/Makefile.objs: > Create configs for petalogix and xilinx boards > git bisect good 268dfefa690b2bdee1f8c5090d2343871cf3467c > # good: [f5117fd28552fe3fe32ef0495582b1caaef7a28d] hw/mips_cpc: kick a VP > when > putting it into Run statewq > git bisect good f5117fd28552fe3fe32ef0495582b1caaef7a28d > # bad: [2e68b8620637a4ee8c79b5724144b726af1e261b] Merge remote-tracking > branch 'remotes/dgibson/tags/ppc-for-4.0-20190219' into staging > git bisect bad 2e68b8620637a4ee8c79b5724144b726af1e261b > # good: [4c668f4a3d684ec133a52d936314379f6edd672e] target/ppc: Remove some > #if > 0'ed code > git bisect good 4c668f4a3d684ec133a52d936314379f6edd672e > # bad: [9b5b74da0a07a89ef71c7f7da0b36560a3bac521] target/ppc: Split out > VSCR_SAT > to a vector field > git bisect bad 9b5b74da0a07a89ef71c7f7da0b36560a3bac521 > # good: [444d6ca301d97de141a502851940943b09a9ebee] spapr/irq: Use the > "simple" > ICS class for KVM > git bisect good 444d6ca301d97de141a502851940943b09a9ebee > # bad: [9bb0048ec6f8f3bcc144b2c5769d9301e824f946] target/ppc: convert xxspltw > to > vector operations > git bisect bad 9bb0048ec6f8f3bcc144b2c5769d9301e824f946 > # good: [471ff3d0257135b938d0a5f2181f22cd753d50de] target/ppc: convert > vspltis[bhw] to use vector operations > git bisect good 471ff3d0257135b938d0a5f2181f22cd753d50de > # bad: [7b8fe477e12b164dda97f79e27b55b805d90384f] target/ppc: convert VSX > logical operations to vector operations > git bisect bad 7b8fe477e12b164dda97f79e27b55b805d90384f > # good: [0f6a6d5db853c0cbe438c1831c70710bfb6530ee] target/ppc: convert > vsplt[bhw] to use vector operations > git bisect good 0f6a6d5db853c0cbe438c1831c70710bfb6530ee > # first bad commit: [7b8fe477e12b164dda97f79e27b55b805d90384f] target/ppc: > convert VSX logical operations to vector operations > guest@slax:/dev/shm/qemu$ > > configure line: > setarch i686 ./configure --target-list=ppc64-softmmu > > launch line: > ppc64-softmmu/qemu-system-ppc64 -display > sdl,gl=on -hda /mnt/sdb1/PPC-img/alpine_disk.img > > where alpine_disk.img is HDD installed Alpine 3.7 for ppc64le with xfce4 > desktop. AFAICT the vector instructions converted here are independent of endian, so I can't see why this patch on its own would have any effect. Maybe it could be because the "setarch i686" part forces use of some lesser-used 32-bit paths in the vector code - is this required? And do you see the same issue on a x86_64 build? ATB, Mark.
