On 26.09.2018 23:24, Guenter Roeck wrote: > On Wed, Sep 26, 2018 at 10:25:22PM +0200, Helge Deller wrote: >> On 26.09.2018 21:32, Guenter Roeck wrote: >>> On Wed, Sep 26, 2018 at 06:36:08PM +0200, Helge Deller wrote: >>>> On 26.09.2018 15:29, Guenter Roeck wrote: >>>>> On 09/26/2018 05:09 AM, John David Anglin wrote: >>>>>> On 2018-09-25 11:21 PM, Guenter Roeck wrote: >>>>>>> This patch causes my parisc qemu tests to fail. >>>>>>> Unfortunately I don't have any useful log output; the failure >>>>>>> is silent. Reverting the patch fixes the problem. >>>>>> Can you be more specific on how to run these tests? >>>>> >>>>> Sorry. Please see >>>>> >>>>> https://github.com/groeck/linux-build-test/tree/master/rootfs/parisc >>>>> >>>>> My tests enable a number of device and debug options on top of defconfig. >>>>> Those are not necessary, though. The problem can be reproduced with defconfig. >>>>> >>>>> With the initrd available from there, and with an image built using 'defconfig', >>>>> run >>>>> >>>>> qemu-system-hppa \ >>>>> -kernel vmlinux -no-reboot \ >>>>> -initrd rootfs.cpio.gz \ >>>>> -append 'rdinit=/sbin/init console=ttyS0,115200' \ >>>>> -nographic -monitor null >>>>> >>>>> I tested with qemu 2.12 and 3.0. Using "arch/parisc/boot/bzImage" as kernel >>>>> image does not make a difference. >>>>> >>>>> Note: The initrd auto-reboots. To avoid that, add "noreboot" as additional >>>>> command line option. >>>> >>>> You didn't mention which kernel version you were using. >>> >>> Sorry. The patch is only available in -next, so I somehow thought it was >>> obvious that I referred to -next. Mainline as of v4.19-rc5-143-gc307aaf3eb47 >>> is fine. However, I do observe the problem in mainline after applying this >>> patch on top of c307aaf3eb47. I also see the problem with your for-next >>> branch. >> >> I tried my -for-next on top of c307aaf3eb47 too -> no issues. >> > > Did you try a non-SMP configuration ? Uni-processor qemu virtual machine with SMP-enabled Linux kernel works. But I haven't tried running a non-SMP Linux kernel itself yet (I can try earliest tomorrow). Helge
