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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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736924801c
commit 27af8e2c90fba242460b01fa020e6e19ed68c495 upstream. We have the following potential deadlock condition: ======================================================== WARNING: possible irq lock inversion dependency detected 5.10.0-rc2+ #25 Not tainted -------------------------------------------------------- swapper/3/0 just changed the state of lock: ffff8880063bd618 (&host->lock){-...}-{2:2}, at: ata_bmdma_interrupt+0x27/0x200 but this lock took another, HARDIRQ-READ-unsafe lock in the past: (&trig->leddev_list_lock){.+.?}-{2:2} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&trig->leddev_list_lock); local_irq_disable(); lock(&host->lock); lock(&trig->leddev_list_lock); <Interrupt> lock(&host->lock); *** DEADLOCK *** no locks held by swapper/3/0. the shortest dependencies between 2nd lock and 1st lock: -> (&trig->leddev_list_lock){.+.?}-{2:2} ops: 46 { HARDIRQ-ON-R at: lock_acquire+0x15f/0x420 _raw_read_lock+0x42/0x90 led_trigger_event+0x2b/0x70 rfkill_global_led_trigger_worker+0x94/0xb0 process_one_work+0x240/0x560 worker_thread+0x58/0x3d0 kthread+0x151/0x170 ret_from_fork+0x1f/0x30 IN-SOFTIRQ-R at: lock_acquire+0x15f/0x420 _raw_read_lock+0x42/0x90 led_trigger_event+0x2b/0x70 kbd_bh+0x9e/0xc0 tasklet_action_common.constprop.0+0xe9/0x100 tasklet_action+0x22/0x30 __do_softirq+0xcc/0x46d run_ksoftirqd+0x3f/0x70 smpboot_thread_fn+0x116/0x1f0 kthread+0x151/0x170 ret_from_fork+0x1f/0x30 SOFTIRQ-ON-R at: lock_acquire+0x15f/0x420 _raw_read_lock+0x42/0x90 led_trigger_event+0x2b/0x70 rfkill_global_led_trigger_worker+0x94/0xb0 process_one_work+0x240/0x560 worker_thread+0x58/0x3d0 kthread+0x151/0x170 ret_from_fork+0x1f/0x30 INITIAL READ USE at: lock_acquire+0x15f/0x420 _raw_read_lock+0x42/0x90 led_trigger_event+0x2b/0x70 rfkill_global_led_trigger_worker+0x94/0xb0 process_one_work+0x240/0x560 worker_thread+0x58/0x3d0 kthread+0x151/0x170 ret_from_fork+0x1f/0x30 } ... key at: [<ffffffff83da4c00>] __key.0+0x0/0x10 ... acquired at: _raw_read_lock+0x42/0x90 led_trigger_blink_oneshot+0x3b/0x90 ledtrig_disk_activity+0x3c/0xa0 ata_qc_complete+0x26/0x450 ata_do_link_abort+0xa3/0xe0 ata_port_freeze+0x2e/0x40 ata_hsm_qc_complete+0x94/0xa0 ata_sff_hsm_move+0x177/0x7a0 ata_sff_pio_task+0xc7/0x1b0 process_one_work+0x240/0x560 worker_thread+0x58/0x3d0 kthread+0x151/0x170 ret_from_fork+0x1f/0x30 -> (&host->lock){-...}-{2:2} ops: 69 { IN-HARDIRQ-W at: lock_acquire+0x15f/0x420 _raw_spin_lock_irqsave+0x52/0xa0 ata_bmdma_interrupt+0x27/0x200 __handle_irq_event_percpu+0xd5/0x2b0 handle_irq_event+0x57/0xb0 handle_edge_irq+0x8c/0x230 asm_call_irq_on_stack+0xf/0x20 common_interrupt+0x100/0x1c0 asm_common_interrupt+0x1e/0x40 native_safe_halt+0xe/0x10 arch_cpu_idle+0x15/0x20 default_idle_call+0x59/0x1c0 do_idle+0x22c/0x2c0 cpu_startup_entry+0x20/0x30 start_secondary+0x11d/0x150 secondary_startup_64_no_verify+0xa6/0xab INITIAL USE at: lock_acquire+0x15f/0x420 _raw_spin_lock_irqsave+0x52/0xa0 ata_dev_init+0x54/0xe0 ata_link_init+0x8b/0xd0 ata_port_alloc+0x1f1/0x210 ata_host_alloc+0xf1/0x130 ata_host_alloc_pinfo+0x14/0xb0 ata_pci_sff_prepare_host+0x41/0xa0 ata_pci_bmdma_prepare_host+0x14/0x30 piix_init_one+0x21f/0x600 local_pci_probe+0x48/0x80 pci_device_probe+0x105/0x1c0 really_probe+0x221/0x490 driver_probe_device+0xe9/0x160 device_driver_attach+0xb2/0xc0 __driver_attach+0x91/0x150 bus_for_each_dev+0x81/0xc0 driver_attach+0x1e/0x20 bus_add_driver+0x138/0x1f0 driver_register+0x91/0xf0 __pci_register_driver+0x73/0x80 piix_init+0x1e/0x2e do_one_initcall+0x5f/0x2d0 kernel_init_freeable+0x26f/0x2cf kernel_init+0xe/0x113 ret_from_fork+0x1f/0x30 } ... key at: [<ffffffff83d9fdc0>] __key.6+0x0/0x10 ... acquired at: __lock_acquire+0x9da/0x2370 lock_acquire+0x15f/0x420 _raw_spin_lock_irqsave+0x52/0xa0 ata_bmdma_interrupt+0x27/0x200 __handle_irq_event_percpu+0xd5/0x2b0 handle_irq_event+0x57/0xb0 handle_edge_irq+0x8c/0x230 asm_call_irq_on_stack+0xf/0x20 common_interrupt+0x100/0x1c0 asm_common_interrupt+0x1e/0x40 native_safe_halt+0xe/0x10 arch_cpu_idle+0x15/0x20 default_idle_call+0x59/0x1c0 do_idle+0x22c/0x2c0 cpu_startup_entry+0x20/0x30 start_secondary+0x11d/0x150 secondary_startup_64_no_verify+0xa6/0xab This lockdep splat is reported after: commit |
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.. | ||
trigger | ||
Kconfig | ||
led-class-flash.c | ||
led-class-multicolor.c | ||
led-class.c | ||
led-core.c | ||
led-triggers.c | ||
leds-88pm860x.c | ||
leds-aat1290.c | ||
leds-acer-a500.c | ||
leds-adp5520.c | ||
leds-an30259a.c | ||
leds-apu.c | ||
leds-ariel.c | ||
leds-as3645a.c | ||
leds-asic3.c | ||
leds-aw2013.c | ||
leds-bcm6328.c | ||
leds-bcm6358.c | ||
leds-bd2802.c | ||
leds-blinkm.c | ||
leds-clevo-mail.c | ||
leds-cobalt-qube.c | ||
leds-cobalt-raq.c | ||
leds-cpcap.c | ||
leds-cr0014114.c | ||
leds-da903x.c | ||
leds-da9052.c | ||
leds-dac124s085.c | ||
leds-el15203000.c | ||
leds-fsg.c | ||
leds-gpio-register.c | ||
leds-gpio.c | ||
leds-hp6xx.c | ||
leds-ip30.c | ||
leds-ipaq-micro.c | ||
leds-is31fl32xx.c | ||
leds-is31fl319x.c | ||
leds-ktd2692.c | ||
leds-lm355x.c | ||
leds-lm3530.c | ||
leds-lm3532.c | ||
leds-lm3533.c | ||
leds-lm3601x.c | ||
leds-lm3642.c | ||
leds-lm3692x.c | ||
leds-lm3697.c | ||
leds-lm36274.c | ||
leds-locomo.c | ||
leds-lp50xx.c | ||
leds-lp55xx-common.c | ||
leds-lp55xx-common.h | ||
leds-lp3944.c | ||
leds-lp3952.c | ||
leds-lp5521.c | ||
leds-lp5523.c | ||
leds-lp5562.c | ||
leds-lp8501.c | ||
leds-lp8788.c | ||
leds-lp8860.c | ||
leds-lt3593.c | ||
leds-max8997.c | ||
leds-max77650.c | ||
leds-max77693.c | ||
leds-mc13783.c | ||
leds-menf21bmc.c | ||
leds-mlxcpld.c | ||
leds-mlxreg.c | ||
leds-mt6323.c | ||
leds-net48xx.c | ||
leds-netxbig.c | ||
leds-nic78bx.c | ||
leds-ns2.c | ||
leds-ot200.c | ||
leds-pca955x.c | ||
leds-pca963x.c | ||
leds-pca9532.c | ||
leds-pm8058.c | ||
leds-powernv.c | ||
leds-pwm.c | ||
leds-rb532.c | ||
leds-regulator.c | ||
leds-s3c24xx.c | ||
leds-sc27xx-bltc.c | ||
leds-sgm3140.c | ||
leds-spi-byte.c | ||
leds-ss4200.c | ||
leds-sunfire.c | ||
leds-syscon.c | ||
leds-tca6507.c | ||
leds-ti-lmu-common.c | ||
leds-tlc591xx.c | ||
leds-tps6105x.c | ||
leds-turris-omnia.c | ||
leds-wm831x-status.c | ||
leds-wm8350.c | ||
leds-wrap.c | ||
leds.h | ||
Makefile | ||
TODO | ||
uleds.c |