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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Summary changed:

- highbank kernel oops with pktgen script
+ [ARM] highbank kernel oops with pktgen script

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https://bugs.launchpad.net/bugs/1059496

Title:
  [ARM] highbank kernel oops with pktgen script

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  [  861.675973] ------------[ cut here ]------------
  [  861.680591] kernel BUG at /home/ikepanhc/linux-armadaxp-3.5.0/mm/slub.c:3474!
  [  861.687716] Internal error: Oops - BUG: 0 [#1] SMP ARM
  [  861.692846] Modules linked in: pktgen
  [  861.696507] CPU: 0    Not tainted  (3.5.0-16-highbank #25)
  [  861.701994] PC is at kfree+0x18c/0x1a0
  [  861.705740] LR is at skb_free_head+0x60/0x6c
  [  861.710001] pc : [<c011c8a4>]    lr : [<c03fdfc0>]    psr: 400f0013
  [  861.710001] sp : ee179c58  ip : ee179c90  fp : ee179c8c
  [  861.721467] r10: edb74056  r9 : 00000000  r8 : c077d800
  [  861.726682] r7 : ed992e00  r6 : edb7404e  r5 : c03fdfc0  r4 : edb74000
  [  861.733198] r3 : 00000000  r2 : 00000000  r1 : c1765e80  r0 : edb74000
  [  861.739716] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
  [  861.747015] Control: 10c5387d  Table: 2c87004a  DAC: 00000015
  [  861.752751] Process kpktgend_0 (pid: 938, stack limit = 0xee1782f0)
  [  861.759008] Stack: (0xee179c58 to 0xee17a000)
  [  861.763356] 9c40:                                                       ee179cb4 ee179c68
  [  861.771525] 9c60: c006cbdc ed633480 ed633480 edb7404e ed992e00 c077d800 00000000 edb74056
  [  861.779695] 9c80: ee179c9c ee179c90 c03fdfc0 c011c724 ee179cb4 ee179ca0 c03fece0 c03fdf6c
  [  861.787863] 9ca0: ed633480 ed633480 ee179ccc ee179cb8 c03fed24 c03fec30 00000001 ee264000
  [  861.796032] 9cc0: ee179ce4 ee179cd0 c03fee14 c03fed0c ee264000 ed633480 ee179d4c ee179ce8
  [  861.804201] 9ce0: c04678fc c03fede8 ee264000 00000001 600f0193 00000000 a532040a 0532040a
  [  861.812369] 9d00: c04f3dfc c00a3c3c 00000000 00000000 ee009950 00000070 00000001 00000000
  [  861.820538] 9d20: 00000001 ed633480 ee264000 c0754330 00000608 00000000 00000001 c0754350
  [  861.828707] 9d40: ee179d74 ee179d50 c0467f40 c0467898 ee009950 00f7291f 00000070 c0019c50
  [  861.836875] 9d60: ed633480 ee264000 ee179dcc ee179d78 c0408558 c0467e6c ee179dbc ee179d88
  [  861.845044] 9d80: c0019c50 c0754318 ee179db4 c001e1d8 ee179dbc ed633480 0000003c c0754350
  [  861.853213] 9da0: c1765e80 ed633480 00000000 00000001 ee845fc0 00000000 0000003c ed633480
  [  861.861381] 9dc0: ee179dfc ee179dd0 c0409414 c0407fa8 00000001 ee845fc0 ee179dfc c03744f4
  [  861.869550] 9de0: ee2644c0 00000000 00000001 ee2644c0 ee179e5c ee179e00 c0374514 c04093f4
  [  861.877719] 9e00: 00000000 ffffffff ee179e6c ee179e18 c04f4380 c00084f4 c0788c14 200f0013
  [  861.885887] 9e20: f0002000 ee26450c ee26450c 00000040 c0788bf0 ee26450c 00000001 00000000
  [  861.894055] 9e40: 0000012c c31bda80 c31bda80 00000040 ee179e9c ee179e60 c040b930 c0374184
  [  861.902224] 9e60: ee179e8c ee178000 0000db62 c31bda88 c001e410 00000001 00000003 0000000c
  [  861.910392] 9e80: c074c090 ee178000 ee178000 c074c08c ee179ee4 ee179ea0 c002e258 c040b7e4
  [  861.918561] 9ea0: 00000001 c001e118 ee179ecc 0000000a 00000000 00000101 c07525a0 600f0013
  [  861.926730] 9ec0: 00000000 edad7000 ed019c04 eda59000 ee178000 ed019c00 ee179efc ee179ee8
  [  861.934898] 9ee0: c002e518 c002e19c 00000008 ee178000 ee179f14 ee179f00 c002e5d8 c002e4c8
  [  861.943066] 9f00: eda59040 00000000 ee179f24 ee179f18 c04f407c c002e530 ee179fbc ee179f28
  [  861.951235] 9f20: bf0050fc c04f4058 8aa6cd54 00000062 c0748440 c0748440 0000b2e2 00000000
  [  861.959404] 9f40: ee179f5c ee179f50 ed019e20 ed019c00 3b9aca00 00000000 edad722c 00000008
  [  861.967572] 9f60: c0373078 000000c8 00000000 eda12a00 c0049560 ee179f74 ee179f74 0000035c
  [  861.975741] 9f80: 393915b6 c0049560 ee179f88 ee179f88 00000013 edb9bea0 ed019c00 bf004974
  [  861.983909] 9fa0: 00000013 00000000 00000000 00000000 ee179ff4 ee179fc0 c0048cc8 bf004980
  [  861.992077] 9fc0: 00000000 ed019c00 00000000 00000000 ee179fd0 ee179fd0 00000000 edb9bea0
  [  862.000246] 9fe0: c0048c30 c000f5b8 00000000 ee179ff8 c000f5b8 c0048c3c 00000000 00000000
  [  862.008425] [<c011c8a4>] (kfree+0x18c/0x1a0) from [<c03fdfc0>] (skb_free_head+0x60/0x6c)
  [  862.016513] [<c03fdfc0>] (skb_free_head+0x60/0x6c) from [<c03fece0>] (skb_release_data+0xbc/0xdc)
  [  862.025379] [<c03fece0>] (skb_release_data+0xbc/0xdc) from [<c03fed24>] (__kfree_skb+0x24/0xdc)
  [  862.034072] [<c03fed24>] (__kfree_skb+0x24/0xdc) from [<c03fee14>] (consume_skb+0x38/0x9c)
  [  862.042333] [<c03fee14>] (consume_skb+0x38/0x9c) from [<c04678fc>] (arp_process+0x70/0x5d4)
  [  862.050680] [<c04678fc>] (arp_process+0x70/0x5d4) from [<c0467f40>] (arp_rcv+0xe0/0x13c)
  [  862.058765] [<c0467f40>] (arp_rcv+0xe0/0x13c) from [<c0408558>] (__netif_receive_skb+0x5bc/0x658)
  [  862.067631] [<c0408558>] (__netif_receive_skb+0x5bc/0x658) from [<c0409414>] (netif_receive_skb+0x2c/0x9c)
  [  862.077279] [<c0409414>] (netif_receive_skb+0x2c/0x9c) from [<c0374514>] (xgmac_poll+0x39c/0x548)
  [  862.086147] [<c0374514>] (xgmac_poll+0x39c/0x548) from [<c040b930>] (net_rx_action+0x158/0x240)
  [  862.094842] [<c040b930>] (net_rx_action+0x158/0x240) from [<c002e258>] (__do_softirq+0xc8/0x1e0)
  [  862.103622] [<c002e258>] (__do_softirq+0xc8/0x1e0) from [<c002e518>] (do_softirq+0x5c/0x68)
  [  862.111967] [<c002e518>] (do_softirq+0x5c/0x68) from [<c002e5d8>] (local_bh_enable_ip+0xb4/0xc4)
  [  862.120751] [<c002e5d8>] (local_bh_enable_ip+0xb4/0xc4) from [<c04f407c>] (_raw_spin_unlock_bh+0x30/0x34)
  [  862.130322] [<c04f407c>] (_raw_spin_unlock_bh+0x30/0x34) from [<bf0050fc>] (pktgen_thread_worker+0x788/0x1498 [pktgen])
  [  862.141106] [<bf0050fc>] (pktgen_thread_worker+0x788/0x1498 [pktgen]) from [<c0048cc8>] (kthread+0x98/0xa4)
  [  862.150846] [<c0048cc8>] (kthread+0x98/0xa4) from [<c000f5b8>] (kernel_thread_exit+0x0/0x8)
  [  862.159191] Code: 0a000002 e1a00001 ebff4404 eaffffd6 (e7f001f2) 
  [  862.165301] ---[ end trace 3ffb15eb959246d6 ]---
  [  862.169933] Kernel panic - not syncing: Fatal exception in interrupt
  [  862.176283] CPU1: stopping
  [  862.178997] [<c00163e8>] (unwind_backtrace+0x0/0x104) from [<c04ea1a8>] (dump_stack+0x20/0x24)
  [  862.187604] [<c04ea1a8>] (dump_stack+0x20/0x24) from [<c0014020>] (handle_IPI+0x134/0x16c)
  [  862.195863] [<c0014020>] (handle_IPI+0x134/0x16c) from [<c0008548>] (gic_handle_irq+0x60/0x68)
  [  862.204471] [<c0008548>] (gic_handle_irq+0x60/0x68) from [<c04f4380>] (__irq_svc+0x40/0x50)
  [  862.212812] Exception stack(0xed0f1ed0 to 0xed0f1f18)
  [  862.217854] 1ec0:                                     00000000 00000000 00000000 ed16f884
  [  862.226023] 1ee0: 00000000 00000000 edb32a00 ed1eba10 ed0f1f68 ed0f0000 000003e8 ed0f1f64
  [  862.234191] 1f00: 3b9aca00 ed0f1f18 c004d270 c002c97c 600f0013 ffffffff
  [  862.240801] [<c04f4380>] (__irq_svc+0x40/0x50) from [<c002c97c>] (do_setitimer+0x178/0x244)
  [  862.249145] [<c002c97c>] (do_setitimer+0x178/0x244) from [<c002cb40>] (sys_setitimer+0x7c/0x140)
  [  862.257926] [<c002cb40>] (sys_setitimer+0x7c/0x140) from [<c000e300>] (ret_fast_syscall+0x0/0x30)
  [  862.266787] CPU2: stopping
  [  862.269496] [<c00163e8>] (unwind_backtrace+0x0/0x104) from [<c04ea1a8>] (dump_stack+0x20/0x24)
  [  862.278101] [<c04ea1a8>] (dump_stack+0x20/0x24) from [<c0014020>] (handle_IPI+0x134/0x16c)
  [  862.286359] [<c0014020>] (handle_IPI+0x134/0x16c) from [<c0008548>] (gic_handle_irq+0x60/0x68)
  [  862.294965] [<c0008548>] (gic_handle_irq+0x60/0x68) from [<c04f4380>] (__irq_svc+0x40/0x50)
  [  862.303304] Exception stack(0xee0a3f60 to 0xee0a3fa8)
  [  862.308349] 3f60: 00000021 c0752b68 00000002 00000000 ee0a2000 ee0a2000 c0788708 c0758010
  [  862.316518] 3f80: ee0a2000 413fc090 c04fc4d8 ee0a3fb4 ee0a3fb8 ee0a3fa8 c000f664 c000f668
  [  862.324683] 3fa0: 60000013 ffffffff
  [  862.328169] [<c04f4380>] (__irq_svc+0x40/0x50) from [<c000f668>] (default_idle+0x38/0x40)
  [  862.336341] [<c000f668>] (default_idle+0x38/0x40) from [<c000f8b8>] (cpu_idle+0xa8/0xf4)
  [  862.344432] [<c000f8b8>] (cpu_idle+0xa8/0xf4) from [<c04e7394>] (secondary_start_kernel+0xf0/0x110)
  [  862.353471] [<c04e7394>] (secondary_start_kernel+0xf0/0x110) from [<004e6d54>] (0x4e6d54)
  [  862.361638] CPU3: stopping
  [  862.364347] [<c00163e8>] (unwind_backtrace+0x0/0x104) from [<c04ea1a8>] (dump_stack+0x20/0x24)
  [  862.372952] [<c04ea1a8>] (dump_stack+0x20/0x24) from [<c0014020>] (handle_IPI+0x134/0x16c)
  [  862.381209] [<c0014020>] (handle_IPI+0x134/0x16c) from [<c0008548>] (gic_handle_irq+0x60/0x68)
  [  862.389816] [<c0008548>] (gic_handle_irq+0x60/0x68) from [<c04f4380>] (__irq_svc+0x40/0x50)
  [  862.398156] Exception stack(0xee0a5f60 to 0xee0a5fa8)
  [  862.403200] 5f60: 00000022 c0752b68 00000003 00000000 ee0a4000 ee0a4000 c0788708 c0758010
  [  862.411369] 5f80: ee0a4000 413fc090 c04fc4d8 ee0a5fb4 ee0a5fb8 ee0a5fa8 c000f664 c000f668
  [  862.419535] 5fa0: 600f0013 ffffffff
  [  862.423021] [<c04f4380>] (__irq_svc+0x40/0x50) from [<c000f668>] (default_idle+0x38/0x40)
  [  862.431192] [<c000f668>] (default_idle+0x38/0x40) from [<c000f8b8>] (cpu_idle+0xa8/0xf4)
  [  862.439279] [<c000f8b8>] (cpu_idle+0xa8/0xf4) from [<c04e7394>] (secondary_start_kernel+0xf0/0x110)
  [  862.448318] [<c04e7394>] (secondary_start_kernel+0xf0/0x110) from [<004e6d54>] (0x4e6d54)

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