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[Qemu-devel] [Bug 1670175] Re: qemu-system-sparc64 with tribblix-sparc-0

From: Mark Cave-Ayland
Subject: [Qemu-devel] [Bug 1670175] Re: qemu-system-sparc64 with tribblix-sparc-0m16.iso ends with "panic - kernel: no nucleus hblk8 to allocate"
Date: Fri, 07 Apr 2017 14:14:14 -0000

Looks like tribblix is an OpenSolaris variant from the above output (I
normally tend to test with Milax but it's good to have another reference

I spent a lot of time during the 2.8 cycle fixing up the context switch
code in OpenBIOS which gets OpenSolaris most of the way. AFAICT the 2
main missing items are:

1) Wiring up the ebus interrupts

I have patches for this, but they cause Linux to panic on startup,
presumably because of 2) below.

2) Fix up the /pci nodes, adding 2 PCI bridges to the DT

This will take some thought since OpenBIOS needs to be modified to
handle multiple PCI buses and has know bugs with PCI bridges.

The CPU for sun4u machines will always be at 100% because the USIIi processor 
doesn't have a HLT or equivalent instruction that can be used by the guest to 
enable QEMU to pause the vCPU whilst idle.

Note that I work on this as time allows, so progress isn't particularly
rapid. Offers of sponsorship to enable me to spend more time on this
would be gratefully received :)

You received this bug notification because you are a member of qemu-
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  qemu-system-sparc64 with tribblix-sparc-0m16.iso ends with "panic -
  kernel: no nucleus hblk8 to allocate"

Status in QEMU:

Bug description:
  > qemu-system-sparc64 -m 1024 -cdrom Downloads/tribblix-sparc-0m16.iso -boot 
d -nographic
  OpenBIOS for Sparc64
  Configuration device id QEMU version 1 machine id 0
  kernel cmdline 
  CPUs: 1 x SUNW,UltraSPARC-IIi
  UUID: 00000000-0000-0000-0000-000000000000
  Welcome to OpenBIOS v1.1 built on Nov 24 2016 21:23
    Type 'help' for detailed information
  Trying cdrom:f...
  Not a bootable ELF image
  Not a bootable a.out image

  Loading FCode image...
  Loaded 7120 bytes
  entry point is 0x4000
  Evaluating FCode...
  Evaluating FCode...
  Ignoring failed claim for va 10a96a0 memsz 19!
  Ignoring failed claim for va 1000000 memsz d1fb6!
  Ignoring failed claim for va 1402000 memsz 32518!
  Ignoring failed claim for va 1800000 memsz 52ac8!
  SunOS Release 5.11 Version tribblix-m16 64-bit
  Copyright (c) 1983, 2010, Oracle and/or its affiliates. All rights reserved.
  could not find debugger-vocabulary-hook>threads:interpret: exception -13 
  interpret \ ident     "%Z%%M% %I%     %E% SMI"
  \ Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  \ Use is subject to license terms.
  \ The contents of this file are subject to the terms of the
  \ Common Development and Distribution License, Version 1.0 only
  \ (the "License").  You may not use this file except in compliance
  \ with the License.
  \ You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  \ or http://www.opensolaris.org/os/licensing.
  \ See the License for 
  WARNING: add_spec: No major number for sf
  panic - kernel: no nucleus hblk8 to allocate

  QEMU keeps running (CPU is on 100 % all the time), I can interact with
  the prompt:

  0 > boot
  Not a Linux kernel image
  Not a bootable ELF image
  Not a bootable a.out image

  Loading FCode image...
  Unhandled Exception 0x0000000000000018
  PC = 0x00000000ffd25310 NPC = 0x00000000ffd25314
  Stopping execution

  > qemu-system-sparc64 -version
  QEMU emulator version 2.8.0(Virtualization:Staging / SLE_12_SP2)

  https://build.opensuse.org/package/show/Virtualization:Staging/qemu on
  openSUSE Leap 42.2.

  ISO: http://pkgs.tribblix.org/iso/tribblix-sparc-0m16.iso.

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