* [Qemu-devel] [Bug 627982] [NEW] linux 2.6.35 hangs with -no-acpi
@ 2010-09-01 10:54 Samuel thibault
2010-09-01 12:17 ` Avi Kivity
2016-11-07 18:39 ` [Qemu-devel] [Bug 627982] " Thomas Huth
0 siblings, 2 replies; 4+ messages in thread
From: Samuel thibault @ 2010-09-01 10:54 UTC (permalink / raw)
To: qemu-devel
Public bug reported:
Linux 2.6.35 hangs at boot when giving -no-acpi to qemu, for instance
the Debian kernel:
qemu -no-acpi -kernel /boot/vmlinuz-2.6.35-trunk-686
There is no output except just "Booting the kernel"
** Affects: qemu
Importance: Undecided
Status: New
--
linux 2.6.35 hangs with -no-acpi
https://bugs.launchpad.net/bugs/627982
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
Status in QEMU: New
Bug description:
Linux 2.6.35 hangs at boot when giving -no-acpi to qemu, for instance the Debian kernel:
qemu -no-acpi -kernel /boot/vmlinuz-2.6.35-trunk-686
There is no output except just "Booting the kernel"
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] [Bug 627982] [NEW] linux 2.6.35 hangs with -no-acpi
2010-09-01 10:54 [Qemu-devel] [Bug 627982] [NEW] linux 2.6.35 hangs with -no-acpi Samuel thibault
@ 2010-09-01 12:17 ` Avi Kivity
2010-09-01 22:28 ` Samuel Thibault
2016-11-07 18:39 ` [Qemu-devel] [Bug 627982] " Thomas Huth
1 sibling, 1 reply; 4+ messages in thread
From: Avi Kivity @ 2010-09-01 12:17 UTC (permalink / raw)
To: Bug 627982; +Cc: Samuel thibault, qemu-devel
On 09/01/2010 01:54 PM, Samuel thibault wrote:
> Public bug reported:
>
> Linux 2.6.35 hangs at boot when giving -no-acpi to qemu, for instance
> the Debian kernel:
>
> qemu -no-acpi -kernel /boot/vmlinuz-2.6.35-trunk-686
>
> There is no output except just "Booting the kernel"
>
Is this a kernel regression? A qemu regression? What do 'info
registers' and 'x/20i $eip' show?
You know better than this.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] [Bug 627982] [NEW] linux 2.6.35 hangs with -no-acpi
2010-09-01 12:17 ` Avi Kivity
@ 2010-09-01 22:28 ` Samuel Thibault
0 siblings, 0 replies; 4+ messages in thread
From: Samuel Thibault @ 2010-09-01 22:28 UTC (permalink / raw)
To: Bug 627982, qemu-devel
Avi Kivity, le Wed 01 Sep 2010 15:17:50 +0300, a écrit :
> On 09/01/2010 01:54 PM, Samuel thibault wrote:
> >Linux 2.6.35 hangs at boot when giving -no-acpi to qemu, for instance
> >the Debian kernel:
> >
> >qemu -no-acpi -kernel /boot/vmlinuz-2.6.35-trunk-686
> >
> >There is no output except just "Booting the kernel"
>
> Is this a kernel regression?
Debian 2.6.32 does work.
> A qemu regression?
It works when using qemu-system-x86_64, but hangs when using qemu (kvm
disabled in both cases).
> What do 'info registers' and 'x/20i $eip' show?
EIP=c102e576 EFL=00000296 [--S-AP-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =007b 00000000 ffffffff 00cff300 DPL=3 DS [-WA]
CS =0060 00000000 ffffffff 00cf9a00 DPL=0 CS32 [-R-]
SS =0068 00000000 ffffffff 00cf9300 DPL=0 DS [-WA]
DS =007b 00000000 ffffffff 00cff300 DPL=3 DS [-WA]
FS =00d8 00000000 ffffffff 00cf9300 DPL=0 DS [-WA]
GS =00e0 c1481fc0 00000018 c1409148 DPL=0 DS [--A]
LDT=0000 00000000 00000000 00008200 DPL=0 LDT
TR =0020 00001000 00000067 00008900 DPL=0 TSS32-avl
GDT= c147a000 000000ff
IDT= c13c5000 000007ff
CR0=80050033 CR2=ffffb030 CR3=01487000 CR4=00000090
DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
DR6=ffff0ff0 DR7=00000400
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000
c102e576 is in panic_blink_one_second:
c102e51b t panic_blink_one_second
c102e57e t do_oops_enter_exit
i.e. the kernel just paniced.
Digging in the RAM tells that the panic msg is "Attempted to kill the
idle task!", i.e. somehow do_exit() got called in what seemed like the
idle task (!tsk->pid). Digging on the stack gives me
0xc13f0ea0 (init_task)
0xc1270241 (panic)
0xc1031612 (do_exit)
0xc102f27e (kmsg_dump)
0xc1272c8e (oops_end)
0xc101cc90 (no_context)
0xc12742f0 (do_page_fault)
0xc101cd9e (bad_area_nosemaphore)
0xc1272337 (error_code)
... (probable trap limit)
0xc10157e1 (native_apic_mem_read)
0xc1014be7 (get_physical_broadcast)
0xc142f029 (io_apic_get_unique_id)
0xc142f18b (io_apic_unique_id)
0xc142f233 (mp_register_ioapic)
0xc142cc64 (default_get_smp_config)
0xc1424f5c (setup_arch)
It's really easy to reproduce, just try with these kernels:
http://dept-info.labri.fr/~thibault/tmp/qemu/vmlinuz-2.6.35-trunk-686
http://dept-info.labri.fr/~thibault/tmp/qemu/System.map-2.6.35-trunk-686
and as I said on the list, I won't take the time to dig a lot.
Samuel
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Qemu-devel] [Bug 627982] Re: linux 2.6.35 hangs with -no-acpi
2010-09-01 10:54 [Qemu-devel] [Bug 627982] [NEW] linux 2.6.35 hangs with -no-acpi Samuel thibault
2010-09-01 12:17 ` Avi Kivity
@ 2016-11-07 18:39 ` Thomas Huth
1 sibling, 0 replies; 4+ messages in thread
From: Thomas Huth @ 2016-11-07 18:39 UTC (permalink / raw)
To: qemu-devel
Since kernel 2.6.35 is pretty much outdated nowadays, I think we can
close this bug now (Feel free to re-open it if necessary).
** Changed in: qemu
Status: New => Won't Fix
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/627982
Title:
linux 2.6.35 hangs with -no-acpi
Status in QEMU:
Won't Fix
Bug description:
Linux 2.6.35 hangs at boot when giving -no-acpi to qemu, for instance
the Debian kernel:
qemu -no-acpi -kernel /boot/vmlinuz-2.6.35-trunk-686
There is no output except just "Booting the kernel"
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/627982/+subscriptions
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-11-07 18:55 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-09-01 10:54 [Qemu-devel] [Bug 627982] [NEW] linux 2.6.35 hangs with -no-acpi Samuel thibault
2010-09-01 12:17 ` Avi Kivity
2010-09-01 22:28 ` Samuel Thibault
2016-11-07 18:39 ` [Qemu-devel] [Bug 627982] " Thomas Huth
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.