Messages in this thread | | | Date | Tue, 31 Oct 2023 11:40:48 -0400 | From | Paul Gortmaker <> | Subject | Re: 32 bit qemu regression from v6.5 tip pull [6c480f222128 x86/alternative: Rewrite optimize_nops() some] |
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[Re: 32 bit qemu regression from v6.5 tip pull [6c480f222128 x86/alternative: Rewrite optimize_nops() some]] On 30/10/2023 (Mon 20:30) Thomas Gleixner wrote:
> On Mon, Oct 30 2023 at 19:24, Thomas Gleixner wrote:
> > Can you add "debug-alternative" to the kernel command line and log both > > a working and the non-working kernel output. It's noisy :) > > > > Also do you have a .config and the qemu command line handy? > > Forgot to ask: Does the probkem persist with 6.6 ?
My bad, should have mentioned v6.6 and linux-next is impacted. Always a conflict between burying the lead and boring people with details.
The "debug-alternative" is definitely "chatty" -- the "works" case is easy to capture -- working on getting a snapshot of the "fails" case.
I will attach a .config to the yocto bugzilla case, for lack of a better place to put it.
The giant sh*tshow of qemu args used by QA are as follows:
Running paul/poky/build-qemu-x86_32/tmp/work/x86_64-linux/qemu-helper-native/1.0/recipe-sysroot-native/usr/bin/qemu-system-i386 -device virtio-net-pci,netdev=net0,mac=52:54:00:12:34:02 -netdev tap,id=net0,ifname=tap0,script=no,downscript=no -object rng-random,filename=/dev/urandom,id=r ng0 -device virtio-rng-pci,rng=rng0 -drive file=./core-image-minimal-qemux86.rootfs.ext4.2545136,if=virtio,format=raw -usb -device usb-tablet -usb -device usb -kbd -cpu IvyBridge -machine q35,i8042=off -smp 4 -m 256 -serial tcp:127.0.0.1:45019 -serial tcp:127.0.0.1:49567 -pidfile /folk/pgortmak/tglx/pidfile_25451 32 -S -qmp unix:./.ut8nuyx1,server,wait -qmp unix:./.7mu5pxk1,server,nowait -nographic -kernel /yow-lpggp32/paul/poky/build-qemu-x86_32/tmp/deploy/images/qemux86/bzImage -append 'root=/dev/vda rw ip=192.168.7.2::192.168.7.1:255.255.255.0::eth0:off:8.8.8.8 net.ifnames=0 console=ttyS0 console=ttyS1 oprofile.timer= 1 tsc=reliable no_timer_check rcupdate.rcu_expedited=1 swiotlb=0 debug-alternative printk.time=1'
It pains me that it fills a screen. But there it is.
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