On Thu, Nov 23, 2017 at 1:20 AM, Olof's autobooter <build@xxxxxxxxx> wrote: > > Full logs are available at http://arm-soc.lixom.net/bootlogs/mainline/v4.14/ > > Failed boards: > > arndale arm-multi_v7_nosmp_defconfig : FAILED 1:15.09 > > Successful boards: > cubie2 arm-multi_v7_nosmp_defconfig : warnings 0:46.50 > ... > > Last entries of failed logs below: It looks like Olof's boot bot came back after a time without running any tests, and found a regression on Arndale when running with CONFIG_SMP disabled. cubie2 did not run into the same problem. The backtrace looks a bit suspicous. I can see __switch_to() calling the notifiers, which would be vfp_notifier_block and contextidr_notifier_block on both those machines. I don't see how one of those would end up calling cpu_init(), or where cpu_init() might call a NULL function pointer. It's possible that the panic happens on a secondary CPU that should not be running any code, but then I don't see where we get to that back trace either. Arnd > ======================================================================== > > Board arndale-arm-multi_v7_nosmp_defconfig failure log: > ------------------------------------------------- > > [....] Configuring network interfaces...Cannot find device "eth0" > Failed to bring up eth0. > [?25l [?1c 7 [1G[ [32m ok [39;49m 8 [?25h [?0cdone. > [....] Cleaning up temporary files... [?25l [?1c 7 [1G[ [32m ok [39;49m 8 [?25h [?0c. > INIT: Entering runleve[ 6.106173] Unable to handle kernel NULL pointer dereference at virtual address 00000000 > [ 6.113488] pgd = c0204000 > [ 6.116180] [00000000] *pgd=00000000 > [ 6.119743] Internal error: Oops: 80000005 [#1] ARM > [ 6.124600] Modules linked in: > [ 6.127640] CPU: 0 PID: 0 Comm: swapper Tainted: G W 4.14.0 #1 > [ 6.134580] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) > [ 6.140657] task: c14071f8 task.stack: c1400000 > [ 6.145172] PC is at 0x0 > [ 6.147693] LR is at cpu_init+0x14/0x54 > [ 6.151507] pc : [<00000000>] lr : [<c030a970>] psr: 400001d3 > [ 6.157756] sp : c1401f48 ip : 00000000 fp : ed565c80 > [ 6.162964] r10: c156fe94 r9 : c1586b4c r8 : 00000000 > [ 6.168173] r7 : 00000001 r6 : c156fef4 r5 : ee31c700 r4 : c15cec98 > [ 6.174682] r3 : c1592dc0 r2 : 010f9e38 r1 : 6e0c8059 r0 : 00000000 > [ 6.181193] Flags: nZcv IRQs off FIQs off Mode SVC_32 ISA ARM Segment none > [ 6.188483] Control: 10c53c7d Table: 6e0c8059 DAC: 00000051 > [ 6.194212] Process swapper (pid: 0, stack limit = 0xc1400218) > [ 6.200028] Stack: (0xc1401f48 to 0xc1402000) > [ 6.204370] 1f40: ed4e4e00 c03530f4 00000000 c12b3a28 c1401fa4 c030d5d0 > [ 6.212529] 1f60: 00000000 00000000 00000002 00000000 c15d9510 c0c9ee9c c14030c4 00000000 > [ 6.220688] 1f80: c156f3c0 c1400000 c1592c80 c1403040 ffffffff c1592c80 efffcac0 c12b3a28 > [ 6.228848] 1fa0: c1401fb4 c0c9ee9c c1592ccc c1592c80 00000000 c0362150 c1592ccc c1200c54 > [ 6.237007] 1fc0: ffffffff ffffffff 00000000 c1200680 00000000 c12b3a28 c1592e14 c1403058 > [ 6.245166] 1fe0: c12b3a24 c14085fc 40204059 410fc0f4 00000000 40208078 00000000 00000000 > [ 6.253332] [<c030a970>] (cpu_init) from [<c03530f4>] (atomic_notifier_call_chain+0x18/0x20) > [ 6.261748] [<c03530f4>] (atomic_notifier_call_chain) from [<c030d5d0>] (__switch_to+0x34/0x48) > [ 6.270425] Code: bad PC value > [ 6.273464] ---[ end trace d30a42bcfb82d5c1 ]--- > [ 6.278062] Kernel panic - not syncing: Attempted to kill the idle task! > [ 6.284748] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! > > [PYBOOT] [arndale 01:13]: got exception: panic > ~$off -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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