From: Markus Armbruster <armbru@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 00/17] kvm-userspace: Fix and improve guest debugging and x86 debug registers
Date: Mon, 17 Nov 2008 17:44:48 -0500 [thread overview]
Message-ID: <m31vxarmzj.fsf@crossbow.pond.sub.org> (raw)
In-Reply-To: <20081006091415.095241851@mchn012c.ww002.siemens.net> (Jan Kiszka's message of "Mon\, 06 Oct 2008 11\:14\:15 +0200")
Jan Kiszka <jan.kiszka@siemens.com> writes:
[...]
> To summarize the contributions of this series (+ its related kernel
> bits):
> - fully functional guest debugging via gdbstub,
> including hardware breakpoints and watchpoints
> (pick up current gdb cvs to have hbreak via remote gdb)
> - (Almost) unlimited number of standard breakpoints
> - SMP guest debugging support
> - x86 debug registers support (makes guest's gdb and kgdb happy)
>
> The patches are in daily use for several moons here and have proven to
> be very helpful for tricky kernel debugging task. Specifically,
> reproducing and then tracking down certain races/deadlocks on SMP boxes
> is far more comfortable with KVM than on "real metal".
Sounds intriguing. Could you explain briefly what exactly you do to
wire a debuffer to a guest, so dummies like me can give it a whirl?
next prev parent reply other threads:[~2008-11-17 22:44 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-06 9:14 [PATCH 00/17] kvm-userspace: Fix and improve guest debugging and x86 debug registers Jan Kiszka
2008-10-06 9:14 ` [PATCH 01/17] kvm-userspace: Remove old guest debugging hooks Jan Kiszka
2008-10-06 9:14 ` [PATCH 02/17] qemu: Return appropriate watch message to gdb Jan Kiszka
2008-10-06 9:14 ` [PATCH 03/17] qemu: Refactor and enhance break/watchpoint API Jan Kiszka
2008-10-06 9:14 ` [PATCH 04/17] qemu: Set mem_io_vaddr on io_read Jan Kiszka
2008-10-06 9:14 ` [PATCH 05/17] qemu: Respect length of watchpoints Jan Kiszka
2008-10-07 12:04 ` Avi Kivity
2008-10-08 20:22 ` Jan Kiszka
2008-10-06 9:14 ` [PATCH 06/17] qemu: Introduce next_cflags Jan Kiszka
2008-10-07 12:07 ` Avi Kivity
2008-10-06 9:14 ` [PATCH 07/17] qemu: Switch self-modified code recompilation to next_cflags Jan Kiszka
2008-10-06 9:14 ` [PATCH 08/17] qemu: Restore pc on watchpoint hits - v3 Jan Kiszka
2008-10-06 9:14 ` [PATCH 09/17] qemu: Remove premature memop TB terminations Jan Kiszka
2008-10-06 9:14 ` [PATCH 10/17] qemu: Improve debugging of SMP guests Jan Kiszka
2008-10-07 12:12 ` Avi Kivity
2008-10-08 20:25 ` Jan Kiszka
2008-10-06 9:14 ` [PATCH 11/17] qemu: Introduce BP_WATCHPOINT_HIT flag Jan Kiszka
2008-10-06 9:14 ` [PATCH 12/17] qemu: Add debug exception hook Jan Kiszka
2008-10-06 9:14 ` [PATCH 13/17] qemu: Introduce BP_CPU as a breakpoint type Jan Kiszka
2008-10-06 9:14 ` [PATCH 14/17] qemu: x86: Debug register emulation Jan Kiszka
2008-10-07 12:15 ` Avi Kivity
2008-10-08 20:25 ` Jan Kiszka
2008-10-06 9:14 ` [PATCH 15/17] kvm-userspace: Switch to new guest debug interface Jan Kiszka
2008-10-06 9:14 ` [PATCH 16/17] kvm-userspace: Provide compat wrapper for set_debugreg Jan Kiszka
2008-10-07 12:17 ` Avi Kivity
2008-10-08 20:25 ` Jan Kiszka
2008-10-06 9:14 ` [PATCH 17/17] kvm-userspace: remove obsolete special_reload_dr7 hack Jan Kiszka
2008-10-07 12:18 ` [PATCH 00/17] kvm-userspace: Fix and improve guest debugging and x86 debug registers Avi Kivity
2008-10-07 12:20 ` Jan Kiszka
2008-11-17 22:44 ` Markus Armbruster [this message]
2008-11-18 9:08 ` Jan Kiszka
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