[dpdk-dev] [PATCH v2 0/3] Fix virtio-user multi-process crash.
Ami Sabo
amis at radware.com
Thu Mar 2 08:51:21 CET 2017
The patchset fixes secondary process crash issue when it tries
to access virtio-user pmd (e.g. via rte_eth_rx_burst).
The crash happens because the secondary process calls, at
virtio_user_pmd_probe() to virtio_user_eth_dev_alloc()->
rte_eth_dev_allocate() instead of eth_dev_attach_secondary(), as it's
done from rte_eth_dev_pci_probe. Therefore, the device is not properly
initialized + the device data maybe overridden by the secondary
process.
The patchset contains 3 patches:
1. Export rte_eth_dev_attach_secondary, so non-pci drivers will be
allowed to call it.
2. Fix the actual bug by calling the function during virtio_user probe.
3. Code style fixes following Yuanhan Lio's comments.
Ami Sabo (3):
lib/librte_ether: export secondary attach function
net/virtio-user: fix multi-process issue
lib/librte_ether: fix code style issues
drivers/net/virtio/virtio_user_ethdev.c | 26 ++++++++++++++++----------
lib/librte_ether/rte_ethdev.c | 6 +++---
lib/librte_ether/rte_ethdev.h | 13 +++++++++++++
lib/librte_ether/rte_ether_version.map | 7 +++++++
4 files changed, 39 insertions(+), 13 deletions(-)
--
v2:
* Fix code style issues following Yuanhan Liu's review.
--
2.7.4
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