[dpdk-dev] Panic in rte MEMPOOL__mempool_check_cookies()

Kamraan Nasim knasim at sidebandnetworks.com
Thu Nov 6 22:28:18 CET 2014


Greetings,

I have been hitting this issue fairly consistently for the ixgbe driver

MEMPOOL: obj=0x7ffeed1f5d00, mempool=0x7ffeecb69bc0, cookie=badbadbadadd2e55
PANIC in __mempool_check_cookies():
MEMPOOL: bad header cookie (get)

It seems to be a corruption in the mempool bound to my ixgbe port. What I
have observed is that this ONLY happens if I initialize dpdk(i.e. start
dpdk application) AFTER traffic is already flowing in through the port. If
I initialize dpdk and bind BEFORE I start traffic then things seem to work
fine.

Any clues on why this might be happening?

A bit stumped, so would really appreciate all the help I can get on this
one.

Thanks,
Kam


(bt for your reference)

#2  0x0000000000408cc6 in __rte_panic (funcname=0x571100
"__mempool_check_cookies", format=
    0x568fb0 "MEMPOOL: bad header cookie (get)\n%.0s")
    at
/b/knasim/bandwagon/sbn/src/share/dpdk/lib/librte_eal/linuxapp/eal/eal_debug.c:83
#3  0x00000000004af027 in __mempool_check_cookies (rxq=<value optimized
out>)
    at
/b/knasim/bandwagon/sbn/src/share/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:357
#4  rte_mempool_get_bulk (rxq=<value optimized out>)
    at
/b/knasim/bandwagon/sbn/src/share/dpdk/x86_64-native-linuxapp-gcc/include/rte_mempool.h:1094
#5  ixgbe_rx_alloc_bufs (rxq=<value optimized out>)
    at
/b/knasim/bandwagon/sbn/src/share/dpdk/lib/librte_pmd_ixgbe/ixgbe_rxtx.c:997
#6  0x00000000004afce9 in rx_recv_pkts (rx_queue=0x7ffeec8edbc0,
rx_pkts=0x900410,
    nb_pkts=<value optimized out>)
    at
/b/knasim/bandwagon/sbn/src/share/dpdk/lib/librte_pmd_ixgbe/ixgbe_rxtx.c:1074
#7  ixgbe_recv_pkts_bulk_alloc (rx_queue=0x7ffeec8edbc0, rx_pkts=0x900410,
nb_pkts=<value optimized out>)
    at
/b/knasim/bandwagon/sbn/src/share/dpdk/lib/librte_pmd_ixgbe/ixgbe_rxtx.c:1124
#8  0x0000000000520d36 in rte_eth_rx_burst (lp=0x900340, n_workers=14,
bsz_rd=<value optimized out>, bsz_wr=
    144, pos_lb=0 '\000') at /usr/lib/dpdk/include/rte_ethdev.h:2368


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