Re: [Qemu-devel] [PATCH v4 3/6] qemu-iotests: Add _default_cache_mode and _supported_cache_modes

[Kevin Wolf]

Am 03.12.2013 um 09:21 hat Fam Zheng geschrieben:
> On 2013年12月03日 14:05, Wenchao Xia wrote:
> 
> > 
> >    Why forbid mode = writeback?
> > 
> 
> These test cases used to run with only possibly "writethrough", or "none".
> And they don't work with writeback, at least in my case. So I didn't add
> other modes here.

I suspect that the tests allowing writethrough might also work with
directsync. Did you give that one a try?

026 has different output for wt and wb modes, this is why writeback
fails. It should probably check against 026.out.nocache (which would
have to be renamed as 026.out.wb) instead of 026.out. That's something
for a separate series, though.

Kevin