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Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown.
From: |
Samuel Thibault |
Subject: |
Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown. |
Date: |
Wed, 13 Aug 2008 17:14:25 +0100 |
User-agent: |
Mutt/1.5.12-2006-07-14 |
Avi Kivity wrote:
> Why not? IIUC triple fault is exported as a cpu pin, which the chipset/
> motherboard wires into the board-level reset line.
Ah ok, I didn't know it was propagated further than the cpu. Probably a
good thing actually :)
> I think the bios can expect the IDE hardware (or any other device) to be
> quiescent on entry. It doesn't make sense to initiate an explicit reset
> immediately after boot; that would slow things down.
Well, the Bios reset entry could be entered by "accident" too :)
Actually windows drivers used to break my video board so badly that I
had to manually reset my machine before booting Linux.
Well, anyway, I agree with Anthony: the IDE emulation should behave
like hardware: try to cancel pending requests and wait for everything
to finish, instead of possibly writing what the bios puts in the being
written pages :) And it should reset the DMA engines too.
The block layer itself could have a last sync check.
Samuel
- [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Gleb Natapov, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Samuel Thibault, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Gleb Natapov, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Samuel Thibault, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Gleb Natapov, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Samuel Thibault, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Avi Kivity, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Gleb Natapov, 2008/08/13
- Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown.,
Samuel Thibault <=
Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Anthony Liguori, 2008/08/13
Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Gleb Natapov, 2008/08/13
Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Anthony Liguori, 2008/08/13
Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Gleb Natapov, 2008/08/13
Re: [Qemu-devel] [PATCH] Flush pending AIO on reboot and shutdown., Avi Kivity, 2008/08/13