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Date: Tue, 8 Dec 2015 15:25:02 +0800
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: "Xie, Huawei" <huawei.xie@intel.com>
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Cc: "dev@dpdk.org" <dev@dpdk.org>, Victor Kaplansky <vkaplans@redhat.com>,
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Subject: Re: [dpdk-dev] [PATCH 1/4] vhost: handle VHOST_USER_SET_LOG_BASE
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On Tue, Dec 08, 2015 at 05:57:54AM +0000, Xie, Huawei wrote:
> On 12/2/2015 11:40 AM, Yuanhan Liu wrote:
> [...]
> > +
> > + addr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, off);
> > + if (addr == MAP_FAILED) {
> > + RTE_LOG(ERR, VHOST_CONFIG, "mmap log base failed!\n");
> > + return -1;
> > + }
> Yuanhan:
> mmap could fail with non-zero offset for huge page based mapping. Check
> our workaround in user_set_mem_table.
> I think you have done the validation, but i guess off is zero here.
Yes, off is zero. And thanks for the remind; will fix it in next version.
--yliu