| Message ID | 20161017145649.6189-1-lorenzo.pieralisi@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 2016/10/17 22:56, Lorenzo Pieralisi wrote: > Commit 7ba5f605f3a0 ("arm64/numa: remove the limitation that cpu0 must > bind to node0") removed the numa cpu<->node mapping restriction whereby > logical cpu 0 always corresponds to numa node 0; removing the > restriction was correct, in that it does not really exist in practice > but the commit only updated the early mapping of logical cpu 0 to its > real numa node for the DT boot path, missing the ACPI one, leading to > boot failures on ACPI systems owing to missing cpu<->node map for > logical cpu 0. > > Fix the issue by updating the ACPI boot path with code that carries out > the early cpu<->node mapping also for the boot cpu (ie cpu 0), mirroring > what is currently done in the DT boot path. > > Fixes: 7ba5f605f3a0 ("arm64/numa: remove the limitation that cpu0 must bind to node0") > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > Tested-by: Laszlo Ersek <lersek@redhat.com> > Reported-by: Laszlo Ersek <lersek@redhat.com> > Cc: Will Deacon <will.deacon@arm.com> > Cc: Laszlo Ersek <lersek@redhat.com> > Cc: Hanjun Guo <hanjun.guo@linaro.org> Thanks for the quick response and fix, Acked-by: Hanjun Guo <hanjun.guo@linaro.org> By the way, I got another boot failure [1] when we have multi NUMA nodes system with some memory-less nodes (only one node have memory), we are looking into it now, this patch needs to be merged first. Thanks Hanjun [1]: boot failure log: [ 0.000000] NUMA: Adding memblock [0x0 - 0x3fffffff] on node 0 [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x3fffffff] [ 0.000000] NUMA: Adding memblock [0x1400000000 - 0x17ffffffff] on node 1 [ 0.000000] ACPI: SRAT: Node 1 PXM 1 [mem 0x1400000000-0x17ffffffff] [ 0.000000] NUMA: Adding memblock [0x1000000000 - 0x13ffffffff] on node 0 [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x1000000000-0x13ffffffff] [ 0.000000] NUMA: Initmem setup node 0 [mem 0x00000000-0x13fbffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x13fbffe500-0x13fbffffff] [ 0.000000] NUMA: Initmem setup node 1 [mem 0x1400000000-0x17fbffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x17fbfec500-0x17fbfedfff] [ 0.000000] NUMA: Initmem setup node 2 [mem 0x00000000-0xffffffffffffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x17fbfeaa00-0x17fbfec4ff] [ 0.000000] NUMA: NODE_DATA(2) on node 1 [ 0.000000] NUMA: Initmem setup node 3 [mem 0x00000000-0xffffffffffffffff] [ 0.000000] NUMA: NODE_DATA [mem 0x17fbfe8f00-0x17fbfea9ff] [ 0.000000] NUMA: NODE_DATA(3) on node 1 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x00000017fbffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x0000000000024fff] [ 0.000000] node 0: [mem 0x0000000000026000-0x00000000319dffff] [ 0.000000] node 0: [mem 0x00000000319e0000-0x0000000031a4ffff] [ 0.000000] node 0: [mem 0x0000000031a50000-0x0000000031b2ffff] [ 0.000000] node 0: [mem 0x0000000031b30000-0x0000000031b3ffff] [ 0.000000] node 0: [mem 0x0000000031b40000-0x0000000039baffff] [ 0.000000] node 0: [mem 0x0000000039bb0000-0x000000003a143fff] [ 0.000000] node 0: [mem 0x000000003a144000-0x000000003f12ffff] [ 0.000000] node 0: [mem 0x000000003f130000-0x000000003f15ffff] [ 0.000000] node 0: [mem 0x000000003f160000-0x000000003fbfffff] [ 0.000000] node 0: [mem 0x0000001040000000-0x00000013fbffffff] [ 0.000000] node 1: [mem 0x0000001400000000-0x00000017fbffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000013fbffffff] [ 0.000000] Initmem setup node 1 [mem 0x0000001400000000-0x00000017fbffffff] [ 0.000000] Could not find start_pfn for node 2 [ 0.000000] Initmem setup node 2 [mem 0x0000000000000000-0x0000000000000000] [ 0.000000] Could not find start_pfn for node 3 [ 0.000000] Initmem setup node 3 [mem 0x0000000000000000-0x0000000000000000] [ 0.000000] psci: probing for conduit method from ACPI. [ 0.000000] ------------[ cut here ]------------ [ 0.000000] kernel BUG at mm/percpu.c:1916! [ 0.000000] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.9.0-rc1-00083-g3dd62e5 #680 [ 0.000000] Hardware name: Hisilicon Hi1616 Evaluation Board (DT) [ 0.000000] task: ffff000008d5e980 task.stack: ffff000008d50000 [ 0.000000] PC is at pcpu_embed_first_chunk+0x464/0x754 [ 0.000000] LR is at pcpu_embed_first_chunk+0x3f8/0x754 [ 0.000000] pc : [<ffff000008c65af0>] lr : [<ffff000008c65a84>] pstate: 200000c5 [ 0.000000] sp : ffff000008d53e90 [ 0.000000] x29: ffff000008d53e90 [ 0.000000] x28: 0000000000000000 [ 0.000000] [ 0.000000] x27: ffff000008d55e50 [ 0.000000] x26: 0000000000000042 [ 0.000000] [ 0.000000] x25: ffff000008d55d28 [ 0.000000] x24: 0000000000000046 [ 0.000000] [ 0.000000] x23: 0000000000000040 [ 0.000000] x22: ffff8017fbfcff00 [ 0.000000] [ 0.000000] x21: ffff000008ca6e20 [ 0.000000] x20: ffff8017fbfd0518 [ 0.000000] [ 0.000000] x19: 0000000000000042 [ 0.000000] x18: ffff000008e3fb60 [ 0.000000] [ 0.000000] x17: 000000000000001b [ 0.000000] x16: 000000000000000b [ 0.000000] [ 0.000000] x15: 0000001400000000 [ 0.000000] x14: 0000000000000004 [ 0.000000] [ 0.000000] x13: 0000000000000000 [ 0.000000] x12: 0000000000000069 [ 0.000000] [ 0.000000] x11: 00000017fbffff00 [ 0.000000] x10: 0000000000000004 [ 0.000000] [ 0.000000] x9 : 0000000000000000 [ 0.000000] x8 : ffff8017fbfd0f00 [ 0.000000] [ 0.000000] x7 : 0000000000000000 [ 0.000000] x6 : 0000000000000000 [ 0.000000] [ 0.000000] x5 : 0000000000000000 [ 0.000000] x4 : 000000000000003f [ 0.000000] [ 0.000000] x3 : 0000000000000040 [ 0.000000] x2 : 0000000000000040 [ 0.000000] [ 0.000000] x1 : 0000000000000001 [ 0.000000] x0 : ffff000008ca7328 [ 0.000000] [ 0.000000] [ 0.000000] Process swapper (pid: 0, stack limit = 0xffff000008d50020) [ 0.000000] Stack: (0xffff000008d53e90 to 0xffff000008d54000) [ 0.000000] 3e80: ffff000008d53f60 ffff000008c5616c [ 0.000000] 3ea0: ffff000008ca5a08 ffff000008e2a000 ffff000008e2a000 ffff000008d55000 [ 0.000000] 3ec0: ffff000008ca5a08 ffff8017fbfffe80 0000000000000168 000000003c96a518 [ 0.000000] 3ee0: 000000003c971b98 0000000000c50018 ffff000008d53f60 ffff000008c56078 [ 0.000000] 3f00: ffff000008d1f000 ffff000008d14000 0000000000007480 0000000000002000 [ 0.000000] 3f20: ffff000008c560b0 0000000000001000 ffff000008d55e50 ffff000008d55d28 [ 0.000000] 3f40: ffff000008ca6000 0000000000000040 0000000000000001 0000000000000040 [ 0.000000] 3f60: ffff000008d53fa0 ffff000008c508d4 ffff000008ca5a08 ffff000008e2a000 [ 0.000000] 3f80: ffff000008e2a000 ffff000008d55000 ffff000008ca5a08 ffff000008c508d0 [ 0.000000] 3fa0: ffff000008d53ff0 ffff000008c501d8 000000003c94fa98 000000001e400000 [ 0.000000] 3fc0: 000000001e400000 000000025497ba19 0000000000000000 000000003f198a08 [ 0.000000] 3fe0: 0000000000000000 ffff000008ca5a08 0000000000000000 00000000008a325c [ 0.000000] Call trace: [ 0.000000] Exception stack(0xffff000008d53cc0 to 0xffff000008d53df0) [ 0.000000] 3cc0: 0000000000000042 0001000000000000 ffff000008d53e90 ffff000008c65af0 [ 0.000000] 3ce0: ffff000008d53d30 ffff0000081aa024 0000000000000001 0000000000001000 [ 0.000000] 3d00: ffff000008d53d30 ffff0000081aa034 0000000000000001 0000000000001000 [ 0.000000] 3d20: 00000017fbfcff00 0000000000000004 ffff000008d53d90 ffff0000081aa2c8 [ 0.000000] 3d40: 00000017fbfcff00 0000000000001000 0000000000000000 0000000000000000 [ 0.000000] 3d60: ffff000008ca7328 0000000000000001 0000000000000040 0000000000000040 [ 0.000000] 3d80: 000000000000003f 0000000000000000 0000000000000000 0000000000000000 [ 0.000000] 3da0: ffff8017fbfd0f00 0000000000000000 0000000000000004 00000017fbffff00 [ 0.000000] 3dc0: 0000000000000069 0000000000000000 0000000000000004 0000001400000000 [ 0.000000] 3de0: 000000000000000b 000000000000001b [ 0.000000] [<ffff000008c65af0>] pcpu_embed_first_chunk+0x464/0x754 [ 0.000000] [<ffff000008c5616c>] setup_per_cpu_areas+0x3c/0xcc [ 0.000000] [<ffff000008c508d4>] start_kernel+0x10c/0x398 [ 0.000000] [<ffff000008c501d8>] __primary_switched+0x5c/0x64 [ 0.000000] Code: 0b000318 17ffffd8 6b17031f 54000080 (d4210000) [ 0.000000] ---[ end trace 0000000000000000 ]--- [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task!
On 2016/10/18 16:39, Hanjun Guo wrote: > On 2016/10/17 22:56, Lorenzo Pieralisi wrote: >> Commit 7ba5f605f3a0 ("arm64/numa: remove the limitation that cpu0 must >> bind to node0") removed the numa cpu<->node mapping restriction whereby >> logical cpu 0 always corresponds to numa node 0; removing the >> restriction was correct, in that it does not really exist in practice >> but the commit only updated the early mapping of logical cpu 0 to its >> real numa node for the DT boot path, missing the ACPI one, leading to >> boot failures on ACPI systems owing to missing cpu<->node map for >> logical cpu 0. >> >> Fix the issue by updating the ACPI boot path with code that carries out >> the early cpu<->node mapping also for the boot cpu (ie cpu 0), mirroring >> what is currently done in the DT boot path. >> >> Fixes: 7ba5f605f3a0 ("arm64/numa: remove the limitation that cpu0 must bind to node0") >> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> >> Tested-by: Laszlo Ersek <lersek@redhat.com> >> Reported-by: Laszlo Ersek <lersek@redhat.com> >> Cc: Will Deacon <will.deacon@arm.com> >> Cc: Laszlo Ersek <lersek@redhat.com> >> Cc: Hanjun Guo <hanjun.guo@linaro.org> > > Thanks for the quick response and fix, > > Acked-by: Hanjun Guo <hanjun.guo@linaro.org> > > By the way, I got another boot failure [1] when we have multi > NUMA nodes system with some memory-less nodes (only one node > have memory), we are looking into it now, this patch needs > to be merged first. You should apply my numa MEMORYLESS patches first, because the two patches have not been upstreamed yet. I just tested it base on 4.9-rc1 for dt numa, it worked well. I will connect you to check what's wrong on ACPI numa. > > Thanks > Hanjun > > [1]: boot failure log: > [ 0.000000] NUMA: Adding memblock [0x0 - 0x3fffffff] on node 0 > [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x3fffffff] > [ 0.000000] NUMA: Adding memblock [0x1400000000 - 0x17ffffffff] on node 1 > [ 0.000000] ACPI: SRAT: Node 1 PXM 1 [mem 0x1400000000-0x17ffffffff] > [ 0.000000] NUMA: Adding memblock [0x1000000000 - 0x13ffffffff] on node 0 > [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x1000000000-0x13ffffffff] > [ 0.000000] NUMA: Initmem setup node 0 [mem 0x00000000-0x13fbffffff] > [ 0.000000] NUMA: NODE_DATA [mem 0x13fbffe500-0x13fbffffff] > [ 0.000000] NUMA: Initmem setup node 1 [mem 0x1400000000-0x17fbffffff] > [ 0.000000] NUMA: NODE_DATA [mem 0x17fbfec500-0x17fbfedfff] > [ 0.000000] NUMA: Initmem setup node 2 [mem 0x00000000-0xffffffffffffffff] > [ 0.000000] NUMA: NODE_DATA [mem 0x17fbfeaa00-0x17fbfec4ff] > [ 0.000000] NUMA: NODE_DATA(2) on node 1 > [ 0.000000] NUMA: Initmem setup node 3 [mem 0x00000000-0xffffffffffffffff] > [ 0.000000] NUMA: NODE_DATA [mem 0x17fbfe8f00-0x17fbfea9ff] > [ 0.000000] NUMA: NODE_DATA(3) on node 1 > [ 0.000000] Zone ranges: > [ 0.000000] DMA [mem 0x0000000000000000-0x00000000ffffffff] > [ 0.000000] Normal [mem 0x0000000100000000-0x00000017fbffffff] > [ 0.000000] Movable zone start for each node > [ 0.000000] Early memory node ranges > [ 0.000000] node 0: [mem 0x0000000000000000-0x0000000000024fff] > [ 0.000000] node 0: [mem 0x0000000000026000-0x00000000319dffff] > [ 0.000000] node 0: [mem 0x00000000319e0000-0x0000000031a4ffff] > [ 0.000000] node 0: [mem 0x0000000031a50000-0x0000000031b2ffff] > [ 0.000000] node 0: [mem 0x0000000031b30000-0x0000000031b3ffff] > [ 0.000000] node 0: [mem 0x0000000031b40000-0x0000000039baffff] > [ 0.000000] node 0: [mem 0x0000000039bb0000-0x000000003a143fff] > [ 0.000000] node 0: [mem 0x000000003a144000-0x000000003f12ffff] > [ 0.000000] node 0: [mem 0x000000003f130000-0x000000003f15ffff] > [ 0.000000] node 0: [mem 0x000000003f160000-0x000000003fbfffff] > [ 0.000000] node 0: [mem 0x0000001040000000-0x00000013fbffffff] > [ 0.000000] node 1: [mem 0x0000001400000000-0x00000017fbffffff] > [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000013fbffffff] > [ 0.000000] Initmem setup node 1 [mem 0x0000001400000000-0x00000017fbffffff] > [ 0.000000] Could not find start_pfn for node 2 > [ 0.000000] Initmem setup node 2 [mem 0x0000000000000000-0x0000000000000000] > [ 0.000000] Could not find start_pfn for node 3 > [ 0.000000] Initmem setup node 3 [mem 0x0000000000000000-0x0000000000000000] > [ 0.000000] psci: probing for conduit method from ACPI. > [ 0.000000] ------------[ cut here ]------------ > [ 0.000000] kernel BUG at mm/percpu.c:1916! > [ 0.000000] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP > [ 0.000000] Modules linked in: > [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.9.0-rc1-00083-g3dd62e5 #680 > [ 0.000000] Hardware name: Hisilicon Hi1616 Evaluation Board (DT) > [ 0.000000] task: ffff000008d5e980 task.stack: ffff000008d50000 > [ 0.000000] PC is at pcpu_embed_first_chunk+0x464/0x754 > [ 0.000000] LR is at pcpu_embed_first_chunk+0x3f8/0x754 > [ 0.000000] pc : [<ffff000008c65af0>] lr : [<ffff000008c65a84>] pstate: 200000c5 > [ 0.000000] sp : ffff000008d53e90 > [ 0.000000] x29: ffff000008d53e90 [ 0.000000] x28: 0000000000000000 > [ 0.000000] > [ 0.000000] x27: ffff000008d55e50 [ 0.000000] x26: 0000000000000042 > [ 0.000000] > [ 0.000000] x25: ffff000008d55d28 [ 0.000000] x24: 0000000000000046 > [ 0.000000] > [ 0.000000] x23: 0000000000000040 [ 0.000000] x22: ffff8017fbfcff00 > [ 0.000000] > [ 0.000000] x21: ffff000008ca6e20 [ 0.000000] x20: ffff8017fbfd0518 > [ 0.000000] > [ 0.000000] x19: 0000000000000042 [ 0.000000] x18: ffff000008e3fb60 > [ 0.000000] > [ 0.000000] x17: 000000000000001b [ 0.000000] x16: 000000000000000b > [ 0.000000] > [ 0.000000] x15: 0000001400000000 [ 0.000000] x14: 0000000000000004 > [ 0.000000] > [ 0.000000] x13: 0000000000000000 [ 0.000000] x12: 0000000000000069 > [ 0.000000] > [ 0.000000] x11: 00000017fbffff00 [ 0.000000] x10: 0000000000000004 > [ 0.000000] > [ 0.000000] x9 : 0000000000000000 [ 0.000000] x8 : ffff8017fbfd0f00 > [ 0.000000] > [ 0.000000] x7 : 0000000000000000 [ 0.000000] x6 : 0000000000000000 > [ 0.000000] > [ 0.000000] x5 : 0000000000000000 [ 0.000000] x4 : 000000000000003f > [ 0.000000] > [ 0.000000] x3 : 0000000000000040 [ 0.000000] x2 : 0000000000000040 > [ 0.000000] > [ 0.000000] x1 : 0000000000000001 [ 0.000000] x0 : ffff000008ca7328 > [ 0.000000] > [ 0.000000] > [ 0.000000] Process swapper (pid: 0, stack limit = 0xffff000008d50020) > [ 0.000000] Stack: (0xffff000008d53e90 to 0xffff000008d54000) > [ 0.000000] 3e80: ffff000008d53f60 ffff000008c5616c > [ 0.000000] 3ea0: ffff000008ca5a08 ffff000008e2a000 ffff000008e2a000 ffff000008d55000 > [ 0.000000] 3ec0: ffff000008ca5a08 ffff8017fbfffe80 0000000000000168 000000003c96a518 > [ 0.000000] 3ee0: 000000003c971b98 0000000000c50018 ffff000008d53f60 ffff000008c56078 > [ 0.000000] 3f00: ffff000008d1f000 ffff000008d14000 0000000000007480 0000000000002000 > [ 0.000000] 3f20: ffff000008c560b0 0000000000001000 ffff000008d55e50 ffff000008d55d28 > [ 0.000000] 3f40: ffff000008ca6000 0000000000000040 0000000000000001 0000000000000040 > [ 0.000000] 3f60: ffff000008d53fa0 ffff000008c508d4 ffff000008ca5a08 ffff000008e2a000 > [ 0.000000] 3f80: ffff000008e2a000 ffff000008d55000 ffff000008ca5a08 ffff000008c508d0 > [ 0.000000] 3fa0: ffff000008d53ff0 ffff000008c501d8 000000003c94fa98 000000001e400000 > [ 0.000000] 3fc0: 000000001e400000 000000025497ba19 0000000000000000 000000003f198a08 > [ 0.000000] 3fe0: 0000000000000000 ffff000008ca5a08 0000000000000000 00000000008a325c > [ 0.000000] Call trace: > [ 0.000000] Exception stack(0xffff000008d53cc0 to 0xffff000008d53df0) > [ 0.000000] 3cc0: 0000000000000042 0001000000000000 ffff000008d53e90 ffff000008c65af0 > [ 0.000000] 3ce0: ffff000008d53d30 ffff0000081aa024 0000000000000001 0000000000001000 > [ 0.000000] 3d00: ffff000008d53d30 ffff0000081aa034 0000000000000001 0000000000001000 > [ 0.000000] 3d20: 00000017fbfcff00 0000000000000004 ffff000008d53d90 ffff0000081aa2c8 > [ 0.000000] 3d40: 00000017fbfcff00 0000000000001000 0000000000000000 0000000000000000 > [ 0.000000] 3d60: ffff000008ca7328 0000000000000001 0000000000000040 0000000000000040 > [ 0.000000] 3d80: 000000000000003f 0000000000000000 0000000000000000 0000000000000000 > [ 0.000000] 3da0: ffff8017fbfd0f00 0000000000000000 0000000000000004 00000017fbffff00 > [ 0.000000] 3dc0: 0000000000000069 0000000000000000 0000000000000004 0000001400000000 > [ 0.000000] 3de0: 000000000000000b 000000000000001b > [ 0.000000] [<ffff000008c65af0>] pcpu_embed_first_chunk+0x464/0x754 > [ 0.000000] [<ffff000008c5616c>] setup_per_cpu_areas+0x3c/0xcc > [ 0.000000] [<ffff000008c508d4>] start_kernel+0x10c/0x398 > [ 0.000000] [<ffff000008c501d8>] __primary_switched+0x5c/0x64 > [ 0.000000] Code: 0b000318 17ffffd8 6b17031f 54000080 (d4210000) > [ 0.000000] ---[ end trace 0000000000000000 ]--- > [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! > [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! > > > . >
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index d3f151c..8507703 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -544,6 +544,7 @@ acpi_map_gic_cpu_interface(struct acpi_madt_generic_interrupt *processor) return; } bootcpu_valid = true; + early_map_cpu_to_node(0, acpi_numa_get_nid(0, hwid)); return; }
Commit 7ba5f605f3a0 ("arm64/numa: remove the limitation that cpu0 must bind to node0") removed the numa cpu<->node mapping restriction whereby logical cpu 0 always corresponds to numa node 0; removing the restriction was correct, in that it does not really exist in practice but the commit only updated the early mapping of logical cpu 0 to its real numa node for the DT boot path, missing the ACPI one, leading to boot failures on ACPI systems owing to missing cpu<->node map for logical cpu 0. Fix the issue by updating the ACPI boot path with code that carries out the early cpu<->node mapping also for the boot cpu (ie cpu 0), mirroring what is currently done in the DT boot path. Fixes: 7ba5f605f3a0 ("arm64/numa: remove the limitation that cpu0 must bind to node0") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reported-by: Laszlo Ersek <lersek@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Hanjun Guo <hanjun.guo@linaro.org> Cc: Andrew Jones <drjones@redhat.com> Cc: Zhen Lei <thunder.leizhen@huawei.com> Cc: Catalin Marinas <catalin.marinas@arm.com> --- v1 -> v2 - Updated commit log to reflect boot failures set-ups arch/arm64/kernel/smp.c | 1 + 1 file changed, 1 insertion(+)