From: Donald Parsons <dparsons@brightdsl.net>
To: kvm@vger.kernel.org
Subject: kvm-85rc5 Segmentation fault for m >= 2046 GB
Date: Sun, 12 Apr 2009 18:14:12 -0400 [thread overview]
Message-ID: <1239574452.3950.37.camel@falcon> (raw)
Required info:
Intel Core 2 Duo E6600
kvm version kvm-85rc5 seg faults (rc[13] fine; rc[24]?)
Host kernel version: 2.6.29.1 SMP x86_64 (on Fedora 10)
Guest: Fedora 11 beta x86_64 (host and guest updated)
qemu cmd line:
/usr/local/kvm/bin/qemu-system-x86_64 fc11Beta.img -m 2048 &
Problem still present with either of -no-kvm-irqchip or
-no-kvm-pit switch
Problem also appears with the -no-kvm switch
In trying to make the core file smaller I found the
seg fault disappeared for anything less than 2048
and still appeared for other values above 2048.
(Interesting thing, m=2046 and 2047 got a little further, window
changed size before seg fault). Everything up to 2045
worked.
Seg fault occurs quite early, last thing seen is:
"Press F12 for boot menu"
followed by segfault about 3.5 to 4 seconds later.
Seems to be a problem with http://www.linux-kvm.org/page/Bugs
where it says about core files "Then get a backtrace of
the error with" followed by nothing?
dmesg shows:
(these for m>=2048)
qemu-system-x86[9392] general protection ip:43c8e9 sp:7fffdfd955d0
error:0 in qemu-system-x86_64[400000+1f2000]
qemu-system-x86[9394] general protection ip:43c8e9 sp:7fffee13e970
error:0 in qemu-system-x86_64[400000+1f2000]
qemu-system-x86[9462] general protection ip:43c8e9 sp:7fff21ce3510
error:0 in qemu-system-x86_64[400000+1f2000]
qemu-system-x86[9522] general protection ip:43c8e9 sp:7fff7b4d4d10
error:0 in qemu-system-x86_64[400000+1f2000]
qemu-system-x86[9525] general protection ip:43c8e9 sp:7fff11aba2f0
error:0 in qemu-system-x86_64[400000+1f2000]
(next one m=2046)
qemu-system-x86[9540] general protection ip:43c8f4 sp:7fffd6020850
error:0 in qemu-system-x86_64[400000+1f2000]
(next one m=2047)
qemu-system-x86[9314] general protection ip:43c8f4 sp:7fffdcfe1810
error:0 in qemu-system-x86_64[400000+1f2000]
Don
next reply other threads:[~2009-04-12 23:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-12 22:14 Donald Parsons [this message]
2009-04-13 4:42 ` kvm-85rc5 Segmentation fault for m >= 2046 GB Marcelo Tosatti
2009-04-13 15:19 ` Donald Parsons
2009-04-14 2:48 ` Donald Parsons
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