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Sebastian Gottschall 221b6ec69e ath9k: fix crash in spectral scan 
Fixes crash seen on arm smp systems (gateworks ventana imx6):

Unable to handle kernel NULL pointer dereference at virtual address 00000014
pgd = 80004000
[00000014] *pgd=00000000
Internal error: Oops - BUG: 17 [#1] PREEMPT SMP ARM
Modules linked in: ip6table_filter nf_conntrack_ipv6 ip6_tables nf_log_ipv6 nf_defrag_ipv6 shortcut_fe ipcomp6 xfrm_ipcomp xfrm6_tunnel xfrm6_mode_tunnel xfrm6_mode_transport xfrm6_mode_ro xfrm6_mode_beet ip6_tunnel tunnel6 mip6 ah6 esp6 xfrm_algo sit ip_tunnel tunnel4 ipv6 ath10k_pci ath10k_core ath9k ath mac80211 cfg80211 compat ath_pci ath_hal(P) caamalg authencesn authenc caamrng caamhash caam_jr caam cdc_ncm usbnet usbcore sky2 imx2_wdt
CPU: 0 PID: 3 Comm: ksoftirqd/0 Tainted: P                4.9.85 #19
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
task: bf064980 task.stack: bf07c000
PC is at relay_buf_full+0xc/0x30
LR is at _674+0x740/0xf10 [ath9k]
pc : [<8018bce0>]    lr : [<7f1aa604>]    psr: 80000013
sp : bf07dbf0  ip : bf07dc00  fp : bf07dbfc
r10: 0000003f  r9 : bf130e00  r8 : 809044b0
r7 : 00000000  r6 : be67a9f0  r5 : 00000000  r4 : 809043e4
r3 : c0864c24  r2 : 00000000  r1 : 00000004  r0 : 00000000
Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: 4e6a004a  DAC: 00000055
Process ksoftirqd/0 (pid: 3, stack limit = 0xbf07c210)
Stack: (0xbf07dbf0 to 0xbf07e000)
dbe0:                                     bf07dd04 bf07dc00 7f1aa604 8018bce0
dc00: 00004014 be59e010 bf07dc34 bf07dc18 7f1a7084 7f19c07c be59c010 be6470a0
dc20: 0000096c be648954 bf07dc6c bf07dc38 7f1c286c bf07dd90 bf07dc5c bf07dc48
dc40: 8029ea4c 0000003c 00000001 be59c010 00000094 00000000 00000000 00000000
dc60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dc80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dca0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dcc0: 00000000 00000000 00000000 00000000 00000000 00000000 8010ef24 00000030
dce0: be94f5e8 be6485a0 bddf0200 be59c010 be6465a0 be6415a0 bf07ddf4 bf07dd08
dd00: 7f1cf800 7f1aa55c 1fc38c4c 00000000 bf07dd58 cccccccd 66666667 be640bc0
dd20: bf07dd54 be6415a0 1fc38c4c 00000000 00000000 be59c038 be67a9c0 be59e010
dd40: be67a9f0 be647170 8090c904 be59c010 00000000 00000001 1fc38e84 00000000
dd60: be640bc0 bddf0200 00000200 00000010 0000003f 00000002 20000013 be59c010
dd80: 8092d940 bf7ca2c0 bf07ddb4 bf07dd98 1fc38c4c 2602003f 0100ff1b 80ff1b00
dda0: 00808080 00000000 00000000 80808080 80808080 80808080 80808080 00008080
ddc0: 00000000 00000000 7f1b62b8 00000002 be6470ec be6470f0 00000000 bf07de98
dde0: 8092d940 be6415a0 bf07de94 bf07ddf8 7f1d1ed8 7f1cf1fc 00000000 00000000
de00: bf7cc4c0 00000400 be6470f0 bf07de18 8015165c be59c010 8090453c 8090453c
de20: bf07dec4 be6465a0 8014f614 80148884 0000619a 00000001 bf07c000 00000100
de40: bf07de78 00000001 7f327850 00000002 afb50401 bf064980 bf07de9c bf07de68
de60: bf064a00 803cc668 bf064a00 be6470b4 be6470b8 80844180 00000000 bf07de98
de80: 8092d940 bf07c000 bf07dec4 bf07de98 80124d18 7f1d1c44 80124c94 00000000
dea0: 00000006 80902098 80902080 40000006 00000100 bf07c000 bf07df24 bf07dec8
dec0: 8012501c 80124ca0 bf7cc4c0 bf064980 be95e1c0 04208040 80902d00 000061c7
dee0: 0000000a 80600b54 8092d940 808441f8 80902080 bf07dec8 bf03b200 bf07c000
df00: bf03b200 8090fe54 00000000 00000000 00000000 00000000 bf07df34 bf07df28
df20: 80125148 80124f28 bf07df5c bf07df38 8013deb4 8012511c 00000000 bf03b240
df40: bf03b200 8013dc90 00000000 00000000 bf07dfac bf07df60 8013ad40 8013dc9c
df60: 70448040 00000001 00000000 bf03b200 00000000 00030003 bf07df78 bf07df78
df80: 00000000 00000000 bf07df88 bf07df88 bf03b240 8013ac48 00000000 00000000
dfa0: 00000000 bf07dfb0 80107760 8013ac54 00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 8c120004 1190ad04
Backtrace:
[<8018bcd4>] (relay_buf_full) from [<7f1aa604>] (_674+0x740/0xf10 [ath9k])
[<7f1aa550>] (_674 [ath9k]) from [<7f1cf800>] (_582+0x14b4/0x3708 [ath9k])
 r10:be6415a0 r9:be6465a0 r8:be59c010 r7:bddf0200 r6:be6485a0 r5:be94f5e8
 r4:00000030
[<7f1cf1f0>] (_582 [ath9k]) from [<7f1d1ed8>] (_735+0x2a0/0xec4 [ath9k])
 r10:be6415a0 r9:8092d940 r8:bf07de98 r7:00000000 r6:be6470f0 r5:be6470ec
 r4:00000002
[<7f1d1c38>] (_735 [ath9k]) from [<80124d18>] (tasklet_action+0x84/0xf8)
 r10:bf07c000 r9:8092d940 r8:bf07de98 r7:00000000 r6:80844180 r5:be6470b8
 r4:be6470b4
[<80124c94>] (tasklet_action) from [<8012501c>] (__do_softirq+0x100/0x1f4)
 r10:bf07c000 r9:00000100 r8:40000006 r7:80902080 r6:80902098 r5:00000006
 r4:00000000 r3:80124c94
[<80124f1c>] (__do_softirq) from [<80125148>] (run_ksoftirqd+0x38/0x4c)
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:8090fe54 r5:bf03b200
 r4:bf07c000
[<80125110>] (run_ksoftirqd) from [<8013deb4>] (smpboot_thread_fn+0x224/0x260)
[<8013dc90>] (smpboot_thread_fn) from [<8013ad40>] (kthread+0xf8/0x100)
 r9:00000000 r8:00000000 r7:8013dc90 r6:bf03b200 r5:bf03b240 r4:00000000
[<8013ac48>] (kthread) from [<80107760>] (ret_from_fork+0x14/0x34)
 r7:00000000 r6:00000000 r5:8013ac48 r4:bf03b240
Code: e89da800 e1a0c00d e92dd800 e24cb004 (e5901014)
---[ end trace dddf11ac9111b272 ]---
Kernel panic - not syncing: Fatal exception in interrupt
CPU1: stopping
CPU: 1 PID: 0 Comm: swapper/1 Tainted: P      D         4.9.85 #19
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
Backtrace:
[<8010a708>] (dump_backtrace) from [<8010a99c>] (show_stack+0x18/0x1c)
 r7:bf093f58 r6:20000193 r5:809168e8 r4:00000000
[<8010a984>] (show_stack) from [<802a09c4>] (dump_stack+0x94/0xa8)
[<802a0930>] (dump_stack) from [<8010d184>] (handle_IPI+0xe8/0x180)
 r7:bf093f58 r6:00000000 r5:00000001 r4:808478c4
[<8010d09c>] (handle_IPI) from [<801013e8>] (gic_handle_irq+0x78/0x7c)
 r7:f4000100 r6:bf093f58 r5:f400010c r4:8090467c
[<80101370>] (gic_handle_irq) from [<8010b378>] (__irq_svc+0x58/0x8c)
Exception stack(0xbf093f58 to 0xbf093fa0)
3f40:                                                       bf7d62a0 00000000
3f60: 0010a5f4 80113460 bf092000 809043e4 00000002 80904434 bf092008 412fc09a
3f80: 00000000 bf093fb4 bf093fb8 bf093fa8 8010804c 80108050 60000013 ffffffff
 r9:bf092000 r8:bf092008 r7:bf093f8c r6:ffffffff r5:60000013 r4:80108050
[<80108014>] (arch_cpu_idle) from [<80553c2c>] (default_idle_call+0x30/0x34)
[<80553bfc>] (default_idle_call) from [<80158394>] (cpu_startup_entry+0xc4/0xfc)
[<801582d0>] (cpu_startup_entry) from [<8010ce40>] (secondary_start_kernel+0x168/0x174)
 r7:8092d2f8 r4:80913568
[<8010ccd8>] (secondary_start_kernel) from [<10101488>] (0x10101488)
 r5:00000055 r4:4f07806a
Rebooting in 10 seconds..
Reboot failed -- System halted

Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-03-26 18:21:15 +03:00
..
appletalk
arcnet
bonding
caif net: caif: remove redundant re-assignment of pointer pfrm 2018-01-22 10:51:56 -05:00
can can: migrate documentation to restructured text 2018-01-26 10:46:44 +01:00
cris
dsa dsa: ptp: mark dummy helpers as 'inline' 2018-02-22 15:36:42 -05:00
ethernet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-24 00:04:20 -05:00
fddi
fjes
hamradio
hippi
hyperv hv_netvsc: Use the num_online_cpus() for channel limit 2018-01-22 16:24:08 -05:00
ieee802154 vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
ipvlan ipvlan: drop ipv6 dependency 2018-02-21 17:50:57 -05:00
netdevsim netdevsim: fix overflow on the error path 2018-02-01 11:22:51 +01:00
phy Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-19 18:46:11 -05:00
plip
ppp net: make getname() functions return length rather than use int* parameter 2018-02-12 14:15:04 -05:00
slip
team
usb smsc75xx: fix smsc75xx_set_features() 2018-02-22 14:05:15 -05:00
vmxnet3 vmxnet3: remove redundant initialization of pointer 'rq' 2018-02-01 14:54:28 -05:00
wan Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
wimax
wireless ath9k: fix crash in spectral scan 2018-03-26 18:21:15 +03:00
xen-netback
dummy.c
eql.c
geneve.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-29 10:15:51 -05:00
gtp.c
ifb.c
Kconfig ipvlan: selects master_l3 device instead of depending on it 2018-02-21 17:50:58 -05:00
LICENSE.SRC
loopback.c net: Convert loopback_net_ops 2018-02-13 10:36:09 -05:00
macsec.c macsec: restore uAPI after addition of GCM-AES-256 2018-01-22 15:40:16 -05:00
macvlan.c macvlan: fix use-after-free in macvlan_common_newlink() 2018-02-23 10:48:10 -05:00
macvtap.c
Makefile
mdio.c
mii.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c net/mac8390: Convert to nubus_driver 2018-02-21 14:14:05 -05:00
sungem_phy.c
tap.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
thunderbolt.c net: thunderbolt: Run disconnect flow asynchronously when logout is received 2018-02-12 12:03:04 -05:00
tun.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-19 18:46:11 -05:00
veth.c
virtio_net.c virtio_net: fix ndo_xdp_xmit crash towards dev not ready for XDP 2018-02-21 15:09:29 -05:00
vrf.c net: fib_rules: Add new attribute to set protocol 2018-02-23 15:47:20 -05:00
vsockmon.c
vxlan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-29 10:15:51 -05:00
xen-netfront.c xen-netfront: Fix race between device setup and open 2018-02-06 09:55:40 +01:00