[fedora-arm] Kernel issue with Fedora 20 on a BeagleBoneBlack

[Steve Underwood]

Hi,

I have been using the betas of Fedora 20 on a Beagle Bone Black for a 
few weeks, without trouble. After a "yum update" this weekend I keep 
getting lockups after I try to slogin from the Beagle to another 
machine. When this happens I get the following in /var/log/messages. So 
far it seems to only be an attempt to make an outgoing network 
connection which triggers this. I've been doing complex things within 
the machine, like compiling large packages, without problems.

Regards,
Steve

Dec  2 00:21:13 localhost kernel: [  995.671202] Unable to handle kernel 
NULL pointer dereference at virtual address 00000000
Dec  2 00:21:13 localhost kernel: [  995.679756] pgd = dbe84000
Dec  2 00:21:13 localhost kernel: [  995.682609] [00000000] *pgd=00000000
Dec  2 00:21:13 localhost kernel: [  995.686395] Internal error: Oops: 5 
[#1] SMP ARM
Dec  2 00:21:13 localhost kernel: [  995.691260] Modules linked in: 
omapdss(+) nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE 
ip6t_REJECT xt_conntrack cfg80211 rfkill ebtable_nat ebtable_broute 
bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 
nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security 
ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 
nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle 
iptable_security iptable_raw snd_soc_omap snd_soc_core snd_compress 
ac97_bus snd_seq snd_seq_device snd_pcm vfat fat snd_page_alloc 
snd_timer snd soundcore tps65217_regulator omap_wdt nfsd mmc_block
Dec  2 00:21:13 localhost kernel: [  995.750028] CPU: 0 PID: 1154 Comm: 
slogin Not tainted 3.11.9-300.fc20.armv7hl #1
Dec  2 00:21:13 localhost kernel: [  995.757825] task: dd884d80 ti: 
dbe76000 task.ti: dbe76000
Dec  2 00:21:13 localhost kernel: [  995.763535] PC is at 
__list_add+0x34/0xa4
Dec  2 00:21:13 localhost kernel: [  995.767778] LR is at 
__down_write_nested+0x48/0xa0
Dec  2 00:21:13 localhost kernel: [  995.772832] pc : [<c02c1e4c>]    lr 
: [<c05c27d4>]    psr: 600f0093
Dec  2 00:21:13 localhost kernel: [  995.772832] sp : dbe77f08  ip : 
00000000  fp : b7f5d410
Dec  2 00:21:13 localhost kernel: [  995.784927] r10: 00000200  r9 : 
c09184c8  r8 : 00000002
Dec  2 00:21:13 localhost kernel: [  995.790434] r7 : dd884d80  r6 : 
dbe77f20  r5 : c095d438  r4 : 00000000
Dec  2 00:21:13 localhost kernel: [  995.797312] r3 : 00000000  r2 : 
c095d438  r1 : 00000000  r0 : dbe77f20
Dec  2 00:21:13 localhost kernel: [  995.804192] Flags: nZCv  IRQs off  
FIQs on  Mode SVC_32  ISA ARM  Segment user
Dec  2 00:21:13 localhost kernel: [  995.811803] Control: 10c5387d  
Table: 9be84019  DAC: 00000015
Dec  2 00:21:13 localhost kernel: [  995.817859] Process slogin (pid: 
1154, stack limit = 0xdbe76240)
Dec  2 00:21:13 localhost kernel: [  995.824190] Stack: (0xdbe77f08 to 
0xdbe78000)
Dec  2 00:21:13 localhost kernel: [  995.828789] 7f00:                   
dbe77f20 00000000 c095d430 c095d434 600f0013 c05c27d4
Dec  2 00:21:13 localhost kernel: [  995.837414] 7f20: c095d430 00000000 
dd884d80 00000000 00000000 000003e8 dbe76008 c095d350
Dec  2 00:21:13 localhost kernel: [  995.846039] 7f40: dc249900 c02580fc 
ffffffff c00b04f4 dbe74c00 c00b0340 c097b320 dbe77f64
Dec  2 00:21:13 localhost kernel: [  995.854664] 7f60: 00000010 7265705f 
74736973 2e746e65 30303031 dbe77f00 00000137 dbe76000
Dec  2 00:21:13 localhost kernel: [  995.863290] 7f80: dbe76000 271ae615 
fffffffe b7f5dacc bef84d9c aaa84700 00000137 c000e904
Dec  2 00:21:13 localhost kernel: [  995.871916] 7fa0: dbe76000 c000e8e8 
b7f5dacc bef84d9c 00000016 000003e8 fffffffe 00000000
Dec  2 00:21:13 localhost kernel: [  995.880543] 7fc0: b7f5dacc bef84d9c 
aaa84700 00000137 00000000 b7f5d510 bef84e24 b7f5d410
Dec  2 00:21:13 localhost kernel: [  995.889169] 7fe0: bef84d78 bef84d68 
b661531c b69ec960 600f0010 00000016 9fef6821 9fef6c21
Dec  2 00:21:13 localhost kernel: [  995.897817] [<c02c1e4c>] 
(__list_add+0x34/0xa4) from [<c05c27d4>] (__down_write_nested+0x48/0xa0)
Dec  2 00:21:13 localhost kernel: [  995.907199] [<c05c27d4>] 
(__down_write_nested+0x48/0xa0) from [<c02580fc>] 
(keyctl_get_persistent+0xf0/0x274)
Dec  2 00:21:13 localhost kernel: [  995.917672] [<c02580fc>] 
(keyctl_get_persistent+0xf0/0x274) from [<c000e8e8>] 
(__sys_trace_return+0x0/0x18)
Dec  2 00:21:13 localhost kernel: [  995.927961] [<c000e8e8>] 
(__sys_trace_return+0x0/0x18) from [<fffffffe>] (0xfffffffe)
Dec  2 00:21:13 localhost kernel: [  995.936221] Code: e59f0068 e1a03004 
e59f2064 ebf61621 (e5943000)
Dec  2 00:21:13 localhost kernel: [  995.942666] ---[ end trace 
6b4a1597da9fbcc9 ]---

Regards,
Steve