[Qemu-devel] [Bug 1191326] [NEW] QNX 4 doesn't boot on qemu >= 1.3

[Qemu-devel] [Bug 1191326] [NEW] QNX 4 doesn't boot on qemu >= 1.3

[JQu]

Public bug reported:


I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
(1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

When virtual machine boots qnx bootloader loads and starts operating system. In the next step
qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
tries mount partition - an error occur and qnx stop booting procedure:

mount -p "No bios signature in partition sector on /dev/hd0"

I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[JQu]

with qemu 1.6 is even worse - qemu crash every time when QNX detects
hard disk

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Andreas Färber]

Please use git-bisect to find out which change between 1.2.0 and 1.3.0
broke things for you.

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[JQu]

problem appeared in this commit:

commit b90600eed3c0efe5f3260853c873caf51c0677b1
Author: Avi Kivity <avi@redhat.com>
Date:   Wed Oct 3 16:42:37 2012 +0200

    dma: make dma access its own address space
    
    Instead of accessing the cpu address space, use an address space
    configured by the caller.
    
    Eventually all dma functionality will be folded into AddressSpace,
    but we have to start from something.
    
    Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
    Signed-off-by: Avi Kivity <avi@redhat.com>

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You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[JQu]

Output from valgrind running latest qemu downloaded from git. Qemu crashed of course.
If I can check something more, please let me know.

==29109== Memcheck, a memory error detector
==29109== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==29109== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==29109== Command: qemu-system-i386 -no-kvm -hda /home/jq/QNX4.vmdk
==29109== Parent PID: 15280
==29109== 
==29109== Invalid write of size 8
==29109==    at 0x4C2CD8D: memcpy@@GLIBC_2.14 (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==29109==    by 0x4DF292: iov_from_buf (iov.c:37)
==29109==    by 0x4E01B8: qemu_iovec_from_buf (iov.c:374)
==29109==    by 0x1A0CA6: bdrv_aio_bh_cb (block.c:3820)
==29109==    by 0x186CEB: aio_bh_poll (async.c:81)
==29109==    by 0x18693D: aio_poll (aio-posix.c:188)
==29109==    by 0x1870FA: aio_ctx_dispatch (async.c:205)
==29109==    by 0x5081AB4: g_main_context_dispatch (gmain.c:2715)
==29109==    by 0x3235CE: glib_pollfds_poll (main-loop.c:189)
==29109==    by 0x3236C2: os_host_main_loop_wait (main-loop.c:234)
==29109==    by 0x32379A: main_loop_wait (main-loop.c:484)
==29109==    by 0x3B0776: main_loop (vl.c:2090)
==29109==  Address 0x157c8ff8 is not stack'd, malloc'd or (recently) free'd
==29109== 
==29109== Invalid read of size 4
==29109==    at 0x3C4B85: ldl_p (bswap.h:262)
==29109==    by 0x3C4CC6: ldl_le_p (bswap.h:295)
==29109==    by 0x3CAAC2: address_space_rw (exec.c:1953)
==29109==    by 0x3CAE0C: address_space_write (exec.c:2021)
==29109==    by 0x3CB570: address_space_unmap (exec.c:2230)
==29109==    by 0x1EF736: dma_memory_unmap (dma.h:146)
==29109==    by 0x1EFCBD: dma_bdrv_unmap (dma-helpers.c:108)
==29109==    by 0x1EFE35: dma_bdrv_cb (dma-helpers.c:146)
==29109==    by 0x1A0FE0: bdrv_co_em_bh (block.c:3901)
==29109==    by 0x186CEB: aio_bh_poll (async.c:81)
==29109==    by 0x18693D: aio_poll (aio-posix.c:188)
==29109==    by 0x1870FA: aio_ctx_dispatch (async.c:205)
==29109==  Address 0x157ba000 is 0 bytes after a block of size 4,096 alloc'd
==29109==    at 0x4C29CD5: memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==29109==    by 0x4C29D2E: posix_memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==29109==    by 0x4DA0AB: qemu_memalign (oslib-posix.c:90)
==29109==    by 0x3CB322: address_space_map (exec.c:2162)
==29109==    by 0x1EF6BE: dma_memory_map (dma.h:137)
==29109==    by 0x1EFEEF: dma_bdrv_cb (dma-helpers.c:156)
==29109==    by 0x1F0205: dma_bdrv_io (dma-helpers.c:219)
==29109==    by 0x1F027A: dma_bdrv_read (dma-helpers.c:228)
==29109==    by 0x2724C4: ide_dma_cb (core.c:676)
==29109==    by 0x278AC2: bmdma_cmd_writeb (pci.c:324)
==29109==    by 0x2792AA: bmdma_write (piix.c:76)
==29109==    by 0x43535C: memory_region_write_accessor (memory.c:440)
==29109== 

valgrind: m_mallocfree.c:266 (mk_plain_bszB): Assertion 'bszB != 0' failed.
valgrind: This is probably caused by your program erroneously writing past the
end of a heap block and corrupting heap metadata.  If you fix any
invalid writes reported by Memcheck, this assertion failure will
probably go away.  Please try that before reporting this as a bug.

==29109==    at 0x3804C6CF: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x3804C812: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x38000883: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x38057FB1: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x38058962: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x380212DC: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x3802158F: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x3808F1DB: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==29109==    by 0x3809E68C: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)

sched status:
  running_tid=1

Thread 1: status = VgTs_Runnable
==29109==    at 0x4C29CD5: memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==29109==    by 0x4C29D2E: posix_memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==29109==    by 0x4DA0AB: qemu_memalign (oslib-posix.c:90)
==29109==    by 0x1A2192: qemu_blockalign (block.c:4375)
==29109==    by 0x1A0D92: bdrv_aio_rw_vector (block.c:3842)
==29109==    by 0x1A0EB6: bdrv_aio_readv_em (block.c:3861)
==29109==    by 0x1A169A: bdrv_co_io_em (block.c:4068)
==29109==    by 0x1A172B: bdrv_co_readv_em (block.c:4085)
==29109==    by 0x19D921: bdrv_co_do_readv (block.c:2574)
==29109==    by 0x1A1091: bdrv_co_do_rw (block.c:3918)
==29109==    by 0x1E7776: coroutine_trampoline (coroutine-ucontext.c:118)
==29109==    by 0x5F3264F: ??? (in /lib/x86_64-linux-gnu/libc-2.15.so)
==29109==    by 0x7FEFFC5CF: ???

Thread 2: status = VgTs_WaitSys
==29109==    at 0x5CDB0C1: sem_timedwait (sem_timedwait.S:102)
==29109==    by 0x4DAD2A: qemu_sem_timedwait (qemu-thread-posix.c:238)
==29109==    by 0x387F22: worker_thread (thread-pool.c:97)
==29109==    by 0x5CD4E99: start_thread (pthread_create.c:308)
==29109==    by 0x5FDDCCC: clone (clone.S:112)

Thread 3: status = VgTs_WaitSys
==29109==    at 0x5CDB89C: __lll_lock_wait (lowlevellock.S:132)
==29109==    by 0x5CDE2B7: _L_cond_lock_874 (pthread_mutex_lock.c:483)
==29109==    by 0x5CDE086: __pthread_mutex_cond_lock (pthread_mutex_lock.c:61)
==29109==    by 0x5CD8E17: pthread_cond_wait@@GLIBC_2.3.2 (pthread_cond_wait.S:236)
==29109==    by 0x4DAB68: qemu_cond_wait (qemu-thread-posix.c:116)
==29109==    by 0x3BE13E: qemu_tcg_wait_io_event (cpus.c:760)
==29109==    by 0x3BE588: qemu_tcg_cpu_thread_fn (cpus.c:891)
==29109==    by 0x5CD4E99: start_thread (pthread_create.c:308)
==29109==    by 0x5FDDCCC: clone (clone.S:112)

Thread 4: status = VgTs_WaitSys
==29109==    at 0x5CD8D84: pthread_cond_wait@@GLIBC_2.3.2 (pthread_cond_wait.S:162)
==29109==    by 0x4DAB68: qemu_cond_wait (qemu-thread-posix.c:116)
==29109==    by 0x3A38CD: vnc_worker_thread_loop (vnc-jobs.c:222)
==29109==    by 0x3A3DF6: vnc_worker_thread (vnc-jobs.c:318)
==29109==    by 0x5CD4E99: start_thread (pthread_create.c:308)
==29109==    by 0x5FDDCCC: clone (clone.S:112)

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Paolo Bonzini]

On Linux hosts are you using KVM? Does it make any difference?

Is there a freely downloadable image that we can use for debugging?

Thanks,

Paolo

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Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[JQu]

KVM doesnt make any difference.

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Ray Senez]

I am also experiencing this problem QNX 4.25 images that were created
under 1.0 no longer work when I've upgraded to 2.0 or 2.1 qemu.

The error message that I receive is the same.  The problem is with the
virtual disk driver, it performs the initial boat loader, then when the
OS goes to load the file system it fails.

** Description changed:

- 
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
- to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version 
+ to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.
  
  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:
  
  mount -p "No bios signature in partition sector on /dev/hd0"
  
  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

-- 
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Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  New

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Thomas Huth]

Triaging old bug tickets ... can you still reproduce this problem with
the latest version of QEMU (currently v2.9.0)?

** Changed in: qemu
       Status: New => Incomplete

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Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Incomplete

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

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Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Expired

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Dmitry Ilyin]

I've just tried to launch QNX 4.25 ISO bootdisk on qemu-system-x86_64 built from current git.
QEMU screen is skewed (see on screenshot). I tried all different options in -vga key - all the same.

** Attachment added: "qemu-qnx4.png"
   https://bugs.launchpad.net/qemu/+bug/1191326/+attachment/4999395/+files/qemu-qnx4.png

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Expired

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

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[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Lukas Jirkovsky]

This is still a problem with QEMU 2.11.

Note that the problem in #10 is unrelated to the issue (though GUI works
for with the the demo floppy). The problem mentioned in this bug is
related to a QNX that is already installed to a disk. Unfortunately the
QNX demo floppy that was once free and which can be still found on the
internet does not allow installation to disk, so it can't be used to
reproduce the bug.

At work we still maintain an application for QNX 4.25 so I can help
debugging it, but I don't know where to start. Currently we use
VirtualBox and VMware, but I personally would prefer QEMU much more.

Please let me know if there is any way how I could help to sort this
issue out.

** Changed in: qemu
       Status: Expired => Confirmed

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Confirmed

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Lukas Jirkovsky]

I wonder - would be a record using rr of any help? I can create record
for QEMU 1.2.0 where it works and on current QEMU.

Also, I did a bit of debugging myself around the DMA code as per comment
#3 it was introduced in a commit that changed some of the DMA. What I
did was that I added some debug printfs [1] to dma_memory_rw() to QEMU
1.2.0 and to QEMU 2.11.1.

I noticed on thing - there is a big difference between writes between the two versions.
Because this stuff is completely outside my knowledge, I don't know whether this is important or not, but better more information that not enough. For recent versions of QEMU I see a few 16 B writes from address 0x6d10 and addresses close to it which contain some data. Immediately after that there is a ton of 8B writes from addresses starting at 0x102004 which contain zeros only. On the other hand, the QEMU 1.2.0 is missing the initial 16B writes, but then there's even more 8B writes from addresses around 0x102004 which contain some data instead of zeros like in the current version.

[1] the printf looks like this:

printf("DEBUG: DMA %s at address %lx %lu bytes: ", ((dir ==
DMA_DIRECTION_FROM_DEVICE) ? "read" : "write"), addr, len);

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Confirmed

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Christian Bohr]

Hi,

I had the same problem, and maybe it can help. I wrote my own toy OS
with a PATA / IDE driver back in 2012 using older version of QEMU and
everything worked fine. These days, I tried that on a recent version
(2.5) and it failed with exactly the same behaviour - lots of zeros
being written during a DMA transfer.

After some research, I found that the behaviour that was changed with
1.3 is that the bus master configuration bit (bit 2 of the PCI command
register) is now emulated, and my driver did not set this bit.
Apparently, the BIOS does not set it either, so it was off and the DMA
transfer silently failed and only wrote zeros.

So I added some code to my init routine that sets this bit, and voila -
it worked. I have tried 1.2, 1.3 and 2.5.0 and this works with all of
them.

I do not know the internals of QNX, but I learned that apparently also
Linux did not set this bit in older version, so it might very well be
that QNX does not set it either and this is the issue.

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You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Confirmed

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Lukas Jirkovsky]

@Christiat: thank you so much, you are right! I put together a quick
hack[1] to seabios to forcefully enable bus master bit on ata device and
QNX booted!

[1] I just added an unconditional call to the pci_enable_busmaster(pci);
to the init_pciata() function in ata.c

-- 
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Confirmed

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Lukas Jirkovsky]

It turns out modifying code is not needed at all. The only thing that is
needed is to configure SeaBIOS with CONFIG_ATA_DMA=y.

So the steps needed to make QNX 4 work on current QEMU are
1. Download SeaBIOS source and make sure the configuration has CONFIG_ATA_DMA=y set
2. Build SeaBIOS
3. Run qemu such as "qemu-system-i386 -bios /path/to/seabios/bios.bin -hda qnxdisk ..."

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Confirmed

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Gerd Hoffmann]

qemu git master has a prebuilt seabios with CONFIG_ATA_DMA=y now.

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devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Confirmed

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
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[Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to
another system. For this we need to know which bugs are still valid
and which could be closed already. Thus we are setting older bugs to
"Incomplete" now.

If you still think this bug report here is valid, then please switch
the state back to "New" within the next 60 days, otherwise this report
will be marked as "Expired". Or please mark it as "Fix Released" if
the problem has been solved with a newer version of QEMU already.

Thank you and sorry for the inconvenience.


** Changed in: qemu
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Incomplete

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions

[Bug 1191326] Re: QNX 4 doesn't boot on qemu >= 1.3

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

-- 
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1191326

Title:
  QNX 4 doesn't boot on qemu >= 1.3

Status in QEMU:
  Expired

Bug description:
  I am using virtual machine with QNX4 operating system installed on it.  I updated my qemu from version
  to newer and QNX4 doesn't start any more. All is ok on version 1.2 but when I try to use any newer version
  (1.3, 1.4, 1.5)  QNX4 doesn't boot.  I tried on windows and linux ubuntu hosts - effects are the same.

  When virtual machine boots qnx bootloader loads and starts operating system. In the next step
  qnx starts its ide driver, which detects qemu harddisk and cdrom. Problem starts when operating system
  tries mount partition - an error occur and qnx stop booting procedure:

  mount -p "No bios signature in partition sector on /dev/hd0"

  I have tried install qnx from cdrom but it seems that there is the same problem. QNX installer boot from
  cdrom, detects hard disk and cdrom, but cdrom can't be mounted in the next step of installation procedure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1191326/+subscriptions