Messages in this thread | | | Date | Tue, 22 Nov 2022 10:23:11 +0100 | Subject | Re: [PATCH v1 1/1] pinctrl: meditatek: Startup with the IRQs disabled | From | AngeloGioacchino Del Regno <> |
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Il 22/11/22 00:38, Ricardo Ribalda ha scritto: > If the system is restarted via kexec(), the peripherals do not start > with a known state. > > If the previous system had enabled an IRQs we will receive unexected > IRQs that can lock the system. > > [ 28.109251] watchdog: BUG: soft lockup - CPU#0 stuck for 26s! > [swapper/0:0] > [ 28.109263] Modules linked in: > [ 28.109273] CPU: 0 PID: 0 Comm: swapper/0 Not tainted > 5.15.79-14458-g4b9edf7b1ac6 #1 9f2e76613148af94acccd64c609a552fb4b4354b > [ 28.109284] Hardware name: Google Elm (DT) > [ 28.109290] pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS > BTYPE=--) > [ 28.109298] pc : __do_softirq+0xa0/0x388 > [ 28.109309] lr : __do_softirq+0x70/0x388 > [ 28.109316] sp : ffffffc008003ee0 > [ 28.109321] x29: ffffffc008003f00 x28: 000000000000000a x27: > 0000000000000080 > [ 28.109334] x26: 0000000000000001 x25: ffffffefa7b350c0 x24: > ffffffefa7b47480 > [ 28.109346] x23: ffffffefa7b3d000 x22: 0000000000000000 x21: > ffffffefa7b0fa40 > [ 28.109358] x20: ffffffefa7b005b0 x19: ffffffefa7b47480 x18: > 0000000000065b6b > [ 28.109370] x17: ffffffefa749c8b0 x16: 000000000000018c x15: > 00000000000001b8 > [ 28.109382] x14: 00000000000d3b6b x13: 0000000000000006 x12: > 0000000000057e91 > [ 28.109394] x11: 0000000000000000 x10: 0000000000000000 x9 : > ffffffefa7b47480 > [ 28.109406] x8 : 00000000000000e0 x7 : 000000000f424000 x6 : > 0000000000000000 > [ 28.109418] x5 : ffffffefa7dfaca0 x4 : ffffffefa7dfadf0 x3 : > 000000000000000f > [ 28.109429] x2 : 0000000000000000 x1 : 0000000000000100 x0 : > 0000000001ac65c5 > [ 28.109441] Call trace: > [ 28.109447] __do_softirq+0xa0/0x388 > [ 28.109454] irq_exit+0xc0/0xe0 > [ 28.109464] handle_domain_irq+0x68/0x90 > [ 28.109473] gic_handle_irq+0xac/0xf0 > [ 28.109480] call_on_irq_stack+0x28/0x50 > [ 28.109488] do_interrupt_handler+0x44/0x58 > [ 28.109496] el1_interrupt+0x30/0x58 > [ 28.109506] el1h_64_irq_handler+0x18/0x24 > [ 28.109512] el1h_64_irq+0x7c/0x80 > [ 28.109519] arch_local_irq_enable+0xc/0x18 > [ 28.109529] default_idle_call+0x40/0x140 > [ 28.109539] do_idle+0x108/0x290 > [ 28.109547] cpu_startup_entry+0x2c/0x30 > [ 28.109554] rest_init+0xe8/0xf8 > [ 28.109562] arch_call_rest_init+0x18/0x24 > [ 28.109571] start_kernel+0x338/0x42c > [ 28.109578] __primary_switched+0xbc/0xc4 > [ 28.109588] Kernel panic - not syncing: softlockup: hung tasks > > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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