[dpdk-dev] [Bug 384] netvsc PMD crashes in secondary process in dev_info_get

[dpdk-dev] [Bug 384] netvsc PMD crashes in secondary process in dev_info_get

[bugzilla]

https://bugs.dpdk.org/show_bug.cgi?id=384

            Bug ID: 384
           Summary: netvsc PMD crashes in secondary process in
                    dev_info_get
           Product: DPDK
           Version: 19.08
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: stephen@networkplumber.org
  Target Milestone: ---

Call rte_ethdev_dev_info_get in a secondary process will crash with netvsc PMD.

The data structure mapping for the vmbus is not mapped at same address.
It is crashing here because hv->vmbus is not the correct in secondary.

static void *hn_rndis_alloc(struct hn_data *hv, size_t size)
{
        return rte_zmalloc_socket("RNDIS", size, PAGE_SIZE,
                                 hv->vmbus->device.numa_node);
}

The numa_node is not needed for control messages.
But fixing that just exposes the next crash when sending the control message.

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[dpdk-dev] [Bug 384] netvsc PMD crashes in secondary process in dev_info_get

[bugzilla]

https://bugs.dpdk.org/show_bug.cgi?id=384

Stephen Hemminger (stephen@networkplumber.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Stephen Hemminger (stephen@networkplumber.org) ---
Fixed in 20.02 by 
7214dda61361 ("net/netvsc: eliminate NUMA specific allocation")

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