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The NIC's interrupt source has some active handler when the port removed. We should cancel the delay handler before removing dev to prevent executing the delay handler. Call Trace: #0 ixgbe_disable_intr (hw=0x0, hw=0x0) at /usr/src/debug/dpdk-18.11/drivers/net/ixgbe/ixgbe_ethdev.c:852 #1 ixgbe_dev_interrupt_delayed_handler (param=0xadb9c0 <rte_eth_devices@@DPDK_2.2+33024>) at /usr/src/debug/dpdk-18.11/drivers/net/ixgbe/ixgbe_ethdev.c:4386 #2 0x00007f05782147af in eal_alarm_callback (arg=<optimized out>) at /usr/src/debug/dpdk-18.11/lib/librte_eal/linuxapp/eal/ eal_alarm.c:90 #3 0x00007f057821320a in eal_intr_process_interrupts (nfds=1, events=0x7f056cbf3e88) at /usr/src/debug/dpdk-18.11/lib/ librte_eal/linuxapp/eal/eal_interrupts.c:838 #4 eal_intr_handle_interrupts (totalfds=<optimized out>, pfd=18) at /usr/src/debug/dpdk-18.11/lib/librte_eal/linuxapp/eal/ eal_interrupts.c:885 #5 eal_intr_thread_main (arg=<optimized out>) at /usr/src/debug/dpdk-18.11/lib/librte_eal/linuxapp/eal/ eal_interrupts.c:965 #6 0x00007f05708a0e45 in start_thread () from /usr/lib64/libpthread.so.0 #7 0x00007f056eb4ab5d in clone () from /usr/lib64/libc.so.6 Fixes: 2866c5f ("ixgbe: support port hotplug") Cc: stable@dpdk.org Signed-off-by: Yunjian Wang <wangyunjian@huawei.com> Acked-by: Qi Zhang <qi.z.zhang@intel.com>
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