Re: Unable to single-step in kvm, always results in a resume

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Thanks Jan.  That fixed it.

Nicholas

Jan Kiszka wrote:
Hi Nicholas,

please don't drop CCs on reply.

Nicholas Amon wrote:
Hi Jan,

Thanks for responding. Yes, I am able to step instruction when I disable kvm w/ the no-kvm option. My host kernel is 64bit 2.6.27 and the program that I am debugging is 32 bit but starts in real mode. But the KVM module I am running is from kvm-88. Is there anyway I can check the version definitively?

kvm modules issue a message when being loaded, check your kernel log.
qemu-kvm gives you the version via -version.

OK, the problems you see is likely related to the very old versions you
use. Update to recent kvm-kmod (2.6.32 series) and qemu-kvm (0.12
series) and retry.

Jan

Thanks,

Nicholas

Jan Kiszka wrote:
Jan Kiszka wrote:
Nicholas Amon wrote:
Hi All,

I am trying to single-step through my kernel using qemu and kvm.  I have
run qemu via:  qemu-system-x86_64 -s -S -hda
/home/nickamon/lab1/obj/kernel.img and also connected to the process
using gdb.

Problem is that whenever I try and step instruction, it seems to resume
my kernel rather than allowing me to progress instruction by
instruction. I have built the kvm snapshot from git and still no luck. Tried following the code for a few hours and have no luck. Any
suggestions?
What's you host kernel or kvm-kmod version?

...and does -no-kvm make any difference (except that it's much slower)?

Jan



--
Nicholas Amon
Senior Software Engineer
Xceedium Inc.
Office: 201-536-1000 x127
Cell: 732-236-7698
namon@xxxxxxxxxxxx

See How to Control & Track High-Risk Users: Join our Webinar on Tuesday, June 2
Network World Names Xceedium GateKeeper "RSA 2009 Best of Show"

--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux