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dd7d4703e9
Martin Kennedy reported:
|Presently, I get this kernel panic on mpc85xx (Aerohive HiveAP 370)
|on OpenWrt 'master' which occurs right as the second processor is
|initialized:
|
|[ 0.478804] rcu: Hierarchical SRCU implementation.
|[ 0.535569] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
|[ 0.627233] smp: Bringing up secondary CPUs ...
|[ 0.681659] kernel tried to execute user page (0) - exploit attempt? (uid: 0)
|[ 0.766618] BUG: Unable to handle kernel instruction fetch (NULL pointer?)
|[ 0.848899] Faulting instruction address: 0x00000000
|[ 0.908273] Oops: Kernel access of bad area, sig: 11 [#1]
|[ 0.972851] BE PAGE_SIZE=4K SMP NR_CPUS=2 P1020 RDB
|[ 1.031179] Modules linked in:
|[ 1.067640] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.80 #0
|[ 1.139507] NIP: 00000000 LR: c0021d2c CTR: 00000000
|[ 1.199921] REGS: c1051cf0 TRAP: 0400 Not tainted (5.10.80)
|[...]
|[ 1.758220] NIP [00000000] 0x0
|[ 1.794688] LR [c0021d2c] smp_85xx_kick_cpu+0xe8/0x568
|[ 1.856126] Call Trace:
|[ 1.885295] [c1051da8] [c0021cb8] smp_85xx_kick_cpu+0x74/0x568 (unreliable)
|[ 1.968633] [c1051de8] [c0011460] __cpu_up+0xc0/0x228
|[ 2.029038] [c1051e18] [c0031bbc] bringup_cpu+0x30/0x224
|[ 2.092572] [c1051e48] [c0031f3c] cpu_up.constprop.0+0x180/0x33c
|[..]
|[ 2.727952] ---[ end trace 9b796a4bafb6bc14 ]---
|[ 3.800879] Kernel panic - not syncing: Fatal exception
|[ 3.862353] Rebooting in 1 seconds..
|[ 5.905097] System Halted, OK to turn off power
|
|I bisected this down to commit
|
||
|---|---|---|
| .. | ||
| apm821xx | ||
| arc770 | ||
| archs38 | ||
| armvirt | ||
| at91 | ||
| ath25 | ||
| ath79 | ||
| bcm27xx | ||
| bcm47xx | ||
| bcm53xx | ||
| bcm63xx | ||
| bcm4908 | ||
| bmips | ||
| gemini | ||
| generic | ||
| imx | ||
| ipq40xx | ||
| ipq806x | ||
| ipq807x | ||
| kirkwood | ||
| lantiq | ||
| layerscape | ||
| malta | ||
| mediatek | ||
| mpc85xx | ||
| mvebu | ||
| mxs | ||
| octeon | ||
| octeontx | ||
| omap | ||
| oxnas | ||
| pistachio | ||
| ramips | ||
| realtek | ||
| rockchip | ||
| sunxi | ||
| tegra | ||
| uml | ||
| x86 | ||
| zynq | ||
| Makefile | ||