[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage |
Date: |
Thu, 22 Feb 2018 11:57:55 +0100 |
User-agent: |
Mutt/1.9.1 (2017-09-22) |
Am 20.02.2018 um 22:54 hat Paolo Bonzini geschrieben:
> On 20/02/2018 18:04, Peter Lieven wrote:
> > Hi,
> >
> > I remember we discussed a long time ago to limit the stack usage of all
> > functions that are executed in a coroutine
> > context to a very low value to be able to safely limit the coroutine
> > stack size as well.
>
> IIRC the only issue was that hw/ide/atapi.c has mutual recursion between
> ide_atapi_cmd_reply_end -> ide_transfer_start -> ahci_start_transfer ->
> ide_atapi_cmd_reply_end.
>
> But perhaps it's not an issue, somebody needs to audit the code.
I think John intended to get rid of the recursion sometime, but I doubt
he has had the time so far.
Kevin
- [Qemu-devel] Limiting coroutine stack usage, Peter Lieven, 2018/02/20
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Paolo Bonzini, 2018/02/20
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage,
Kevin Wolf <=
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Peter Lieven, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Kevin Wolf, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Daniel P . Berrangé, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Peter Lieven, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Daniel P . Berrangé, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Peter Lieven, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Daniel P . Berrangé, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Peter Lieven, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Daniel P . Berrangé, 2018/02/22
- Re: [Qemu-devel] [Qemu-block] Limiting coroutine stack usage, Kevin Wolf, 2018/02/22