Re: 5.0.0-rc3 : Opcode 1f 12 0f 00 (7ce003e4) leaked temporaries

[Philippe Mathieu-Daudé]

On 4/17/20 12:50 PM, Dennis Clarke via wrote:
> On 4/17/20 9:28 AM, Philippe Mathieu-Daudé wrote:
> > On 4/17/20 11:19 AM, Peter Maydell wrote:
> >
> > > > Thanks for the report. Did this work with older QEMU?
> >
> > This is very recent, from commit 0418bf78fe8 last month:
> >
> > Date:   Thu Mar 19 16:44:39 2020 +1000
> >
> >      target/ppc: Fix ISA v3.0 (POWER9) slbia implementation
> >
> >      The new ISA v3.0 slbia variants have not been implemented for TCG,
> >      which can lead to crashing when a POWER9 machine boots Linux using
> >      the hash MMU, for example ("disable_radix" kernel command line).
> >
> > > On Fri, 17 Apr 2020 at 10:16, David Gibson
> > <address@hidden> wrote:
> > > > On Fri, Apr 17, 2020 at 10:01:53AM +0100, Peter Maydell wrote:
> > > > > David -- is this a known bug?
> > > >
> > > > Not known to me.
> > >
> > > I see Philippe's just posted a patch for it :-)
> > We cross-posted at the same time :)
> >
> > nongnu.org seems somehow laggy.
> >
> > Patch link:
> > https://patchew.org/QEMU/address@hidden/
>
> Running now :
>
>
>
> ppc64@styx:~$ /usr/local/bin/qemu-system-ppc64 -machine pseries-4.1 \
> -cpu power9 -smp 4 -m 12G -accel tcg \
> -drive file=/home/ppc64/ppc64le.qcow2 \
> -device virtio-net-pci,netdev=usernet \
> -netdev user,id=usernet,hostfwd=tcp::10000-:22 \
> -serial stdio -display none -vga none
> qemu-system-ppc64: warning: TCG doesn't support requested feature, 
> cap-cfpc=workaround
> qemu-system-ppc64: warning: TCG doesn't support requested feature, 
> cap-sbbc=workaround
> qemu-system-ppc64: warning: TCG doesn't support requested feature, 
> cap-ibs=workaround
>
>
> SLOF **********************************************************************
> QEMU Starting
>   Build Date = Mar 27 2020 13:57:26
>   FW Version = git-8e012d6fddb62be8
>   Press "s" to enter Open Firmware.
>
> Populating /vdevice methods
> Populating /vdevice/vty@71000000
> Populating /vdevice/nvram@71000001
> Populating /vdevice/v-scsi@71000002
>         SCSI: Looking for devices
>            8000000000000000 DISK     : "QEMU     QEMU HARDDISK    2.5+"
>            8200000000000000 CD-ROM   : "QEMU     QEMU CD-ROM      2.5+"
> Populating /pci@800000020000000
>                       00 0000 (D) : 1af4 1000    virtio [ net ]
> No NVRAM common partition, re-initializing...
> Scanning USB
> Using default console: /vdevice/vty@71000000
>
>    Welcome to Open Firmware
>
>    Copyright (c) 2004, 2017 IBM Corporation All rights reserved.
>    This program and the accompanying materials are made available
>    under the terms of the BSD License available at
>    http://www.opensource.org/licenses/bsd-license.php
>
>
> Trying to load:  from: /vdevice/v-scsi@71000002/disk@8000000000000000 
> ...   Successfully loaded
>
>
>
> I am not sure what that warning means but I will get the Debian sid
>   ppc64le instance running and test a bit.

If the referenced patch removed the warnings, do you mind responding:

Tested-by: Dennis Clarke <address@hidden>

to it?

Thanks for testing it :)

>