dpdk crashes when enable vmxnet3 interrupt on system not supporting interrupt

dpdk crashes when enable vmxnet3 interrupt on system not supporting interrupt

[Bin Zhou (bzhou2)]

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Hi,
We have an OVA which may run on systems support or not support interrupt in guest VM.
When enable vmxnets interrupt in guest VM that does not support interrupt, dpdk crashes:

#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007f8aac398859 in __GI_abort () at abort.c:79
#2  0x0000000000406955 in os_exit (code=<optimized out>) at /opt/project/vpp/vpp-repo/src/vpp/vnet/main.c:440
#3  0x00007f8aac84c727 in unix_signal_handler (signum=<optimized out>, si=<optimized out>, uc=<optimized out>) at /opt/project/vpp/vpp-repo/src/vlib/unix/main.c:185
#4  <signal handler called>
#5  0x00007f8a6aef7d06 in vmxnet3_enable_intr.isra () from /usr/lib/x86_64-linux-gnu/vpp_plugins/dpdk_plugin.so
#6  0x00007f8a6b7ff663 in vmxnet3_dev_rx_queue_intr_enable () from /usr/lib/x86_64-linux-gnu/vpp_plugins/dpdk_plugin.so
#7  0x00007f8a6b20de60 in rte_eth_dev_rx_intr_enable () from /usr/lib/x86_64-linux-gnu/vpp_plugins/dpdk_plugin.so

Is there a way to make dpdk fall back to disable interrupt (rather than crash) in this case?

Thanks,
Bin


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