FYI, we are rather confident that this patch https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2014-May/011920.html fixes the problem you have seen. Cheers, On 12/04/14 23:15, Fabrice Dossin wrote: > Hi, > I could not reproduce this. I keep you update if I see this again. > Best regards, > Fabrice > > On 3 April 2014 10:21, Fabrice Dossin wrote: >> (Sorry, reformatting again, leaving text mode) >> >> >> Hi, >> >> Sorry, my mail client did this behind my back. I did resend the stack >> here under for readability. >> >> For now, it has append only one time on one node. This particular node >> does not have any other node in his range. I execute a "batctl >> gateways" each 5 minutes for monitoring. I will let you know if it >> appends again today or if I found information for reproducibility. >> >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.500226] Unable to handle kernel >> NULL pointer dereference at virtual address 00000022 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.508175] pgd = d4918000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.514355] [00000022] *pgd=138f9831, >> *pte=00000000, *ppte=00000000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.521733] Internal error: Oops: 17 >> [#5] PREEMPT ARM >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.527131] Modules linked in: tun >> ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 >> nf_nat nf_conntrack iptable_filter ip_tables x_tables ipv6 bcm2708_rng >> bcm2708_wdog batman_adv(O) rtc_ds1307 qmi_wwan option usb_wwan arc4 >> usbserial cdc_wdm rt2800usb rt2800lib rt2x00usb rt2x00lib mac80211 cfg80211 >> crc_ccitt sr_mod cdrom leds_gpio led_class rt5572sta(O) spi_bcm2708 >> i2c_bcm2708 btusb bluetooth rfkill >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.544610] CPU: 0 PID: 7261 Comm: >> batctl Tainted: G D O 3.10.30+ #1 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.550263] task: d49f3180 ti: d38d0000 >> task.ti: d38d0000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.556017] PC is at >> batadv_orig_router_get+0x50/0x9c [batman_adv] >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.561587] LR is at >> batadv_orig_router_get+0x10/0x9c [batman_adv] >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.566974] pc : [] lr : >> [] psr: 20000013 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.566974] sp : d38d1ea8 ip : >> 0000000a fp : dda60600 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.577350] r10: cccccccd r9 : >> ddab7000 r8 : dda60600 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.582439] r7 : 00000000 r6 : >> 00000000 r5 : d4826e00 r4 : 00000000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.587535] r3 : d4ac0000 r2 : >> 00000000 r1 : 00000000 r0 : 00000002 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.592468] Flags: nzCv IRQs on FIQs >> on Mode SVC_32 ISA ARM Segment user >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.597357] Control: 00c5387d Table: >> 14918008 DAC: 00000015 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.602319] Process batctl (pid: 7261, >> stack limit = 0xd38d01b0) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.607230] Stack: (0xd38d1ea8 to >> 0xd38d2000) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.611903] 1ea0: >> d49f3180 d49c2580 00000000 bf35a62c 000000ff bf368ed8 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.616816] 1ec0: bf368ee0 bf368eec >> dc89b000 dbe3cd08 ddab7000 dc83bba0 dbd10900 00000000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.621720] 1ee0: 00100073 00000000 >> d25a0aa0 00000000 00000000 00000001 d38d1f20 00000001 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.626477] 1f00: dda60600 c00f653c >> d1f20790 d38d1f80 00001000 b6f18000 dda60628 00000000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.631263] 1f20: 00000000 00000000 >> 00001000 dc83bba0 00000001 d25a0aa0 b6f18000 d38d0000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.636092] 1f40: d38d1f80 00001000 >> d38d0000 00001000 bea8eb54 c00d7530 00000000 00000003 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.640834] 1f60: 00000000 00000000 >> 00000000 d25a0aa0 b6f18000 00000000 00001000 c00d77c4 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.645450] 1f80: 00000000 00000000 >> ffffffff 00916008 fbad2488 00000000 00000003 c000dd68 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.650123] 1fa0: 00000000 c000dbc0 >> 00916008 fbad2488 00000003 b6f18000 00001000 00000000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.654758] 1fc0: 00916008 fbad2488 >> 00000000 00000003 00000000 00021450 b6f1f000 bea8eb54 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.659333] 1fe0: 00000000 bea8e8c8 >> b6d945f8 b6de52bc 60000010 00000003 00000000 00000000 >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.664121] [] >> (batadv_orig_router_get+0x50/0x9c [batman_adv]) from [] >> (batadv_gw_client_seq_print_text+0xac/0x220 [batman_adv]) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.673531] [] >> (batadv_gw_client_seq_print_text+0xac/0x220 [batman_adv]) from [] >> (seq_read+0x1d0/0x4cc) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.678287] [] >> (seq_read+0x1d0/0x4cc) from [] (vfs_read+0x98/0x17c) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.683071] [] >> (vfs_read+0x98/0x17c) from [] (SyS_read+0x3c/0x70) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.687982] [] >> (SyS_read+0x3c/0x70) from [] (ret_fast_syscall+0x0/0x30) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.692822] Code: e8bd8038 e593000c >> e3500000 0afffff8 (e5902020) >> Apr 2 11:45:08 pv2-1dnci kernel: [ 7432.718781] ---[ end trace >> 1e5ba977f5516301 ]--- >> >> Regards, >> Fabrice >> >>> >>>> Hi Fabrice, >>>> >>>> On 02/04/14 13:50, Fabrice Dossin wrote: >>>>> Dear all, >>>>> >>>>> Hello. >>>>> I am not sure it has been notified so I post this issue here. >>>>> It is my first post, so tell me if I do it bad... >>>>> >>>> >>>> no problem, it's fine! Maybe sending the stack trace without adding new >>>> lines is better, but this is fine anyway :) >>>> >>>> Are you able to reproduce this problem somehow? Or it happened only once >>>> under no particular conditions? >>>> >>>> Cheers, >>>> >>>> >>>> -- >>>> Antonio Quartulli >>>> >> > -- Antonio Quartulli