kernel.log

[  436.265967] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  436.265974] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  436.265981] [<ffffffff80068988>] kthread+0x110/0x210
[  436.265986] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  436.265992] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  464.265761] watchdog: BUG: soft lockup - CPU#0 stuck for 417s! [rcu_exp_par_gp_:16]
[  464.265769] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  464.265876] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  464.265883] Tainted: [L]=SOFTLOCKUP
[  464.265886] Hardware name: Milk-V Pioneer (DT)
[  464.265889] epc : smp_call_function_single+0x188/0x1d0
[  464.265900]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  464.265908] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  464.265913]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  464.265917]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  464.265920]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  464.265923]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  464.265927]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  464.265930]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  464.265933]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  464.265936]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  464.265940]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  464.265943]  t5 : 000000000000001f t6 : 0000000000000030
[  464.265946] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  464.265949] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  464.265957] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  464.265964] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  464.265970] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  464.265977] [<ffffffff80068988>] kthread+0x110/0x210
[  464.265982] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  464.265988] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  476.589753] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  476.595686] rcu:     7-...0: (0 ticks this GP) idle=f98c/1/0x4000000000000000 softirq=383/383 fqs=32237
[  476.604829] rcu:     (detected by 18, t=114949 jiffies, g=729, q=885 ncpus=64)
[  476.611790] Sending NMI from CPU 18 to CPUs 7:
[  486.612016] rcu: rcu_sched kthread starved for 2493 jiffies! g729 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=55
[  486.626533] rcu:     Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[  486.635482] rcu: RCU grace-period kthread stack dump:
[  486.640528] task:rcu_sched       state:I stack:0     pid:15    tgid:15    ppid:2      task_flags:0x208040 flags:0x00000000
[  486.651569] Call Trace:
[  486.654015] [<ffffffff80cc1df6>] __schedule+0x40e/0x1060
[  486.659331] [<ffffffff80cc2a76>] schedule+0x2e/0x108
[  486.664297] [<ffffffff80cc9542>] schedule_timeout+0x8a/0x120
[  486.669955] [<ffffffff8010e54a>] rcu_gp_fqs_loop+0x37a/0x420
[  486.675613] [<ffffffff8010e6c8>] rcu_gp_kthread+0xd8/0x180
[  486.681095] [<ffffffff80068988>] kthread+0x110/0x210
[  486.686058] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  486.692063] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  486.698329] rcu: Stack dump where RCU GP kthread last ran:
[  486.703809] Sending NMI from CPU 18 to CPUs 55:
[  486.708358] NMI backtrace for cpu 55 skipped: idling at default_idle_call+0x34/0xf0
[  492.265761] watchdog: BUG: soft lockup - CPU#0 stuck for 443s! [rcu_exp_par_gp_:16]
[  492.265770] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  492.265877] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  492.265884] Tainted: [L]=SOFTLOCKUP
[  492.265887] Hardware name: Milk-V Pioneer (DT)
[  492.265890] epc : smp_call_function_single+0x188/0x1d0
[  492.265901]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  492.265909] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  492.265913]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  492.265916]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  492.265920]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  492.265923]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  492.265927]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  492.265930]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  492.265933]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  492.265936]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  492.265940]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  492.265943]  t5 : 000000000000001f t6 : 0000000000000030
[  492.265946] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  492.265950] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  492.265957] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  492.265964] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  492.265971] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  492.265978] [<ffffffff80068988>] kthread+0x110/0x210
[  492.265983] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  492.265989] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  520.265761] watchdog: BUG: soft lockup - CPU#0 stuck for 469s! [rcu_exp_par_gp_:16]
[  520.265769] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  520.265874] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  520.265882] Tainted: [L]=SOFTLOCKUP
[  520.265885] Hardware name: Milk-V Pioneer (DT)
[  520.265887] epc : smp_call_function_single+0x188/0x1d0
[  520.265899]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  520.265906] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  520.265911]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  520.265914]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  520.265918]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  520.265921]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  520.265925]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  520.265928]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  520.265931]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  520.265935]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  520.265938]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  520.265941]  t5 : 000000000000001f t6 : 0000000000000030
[  520.265944] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  520.265948] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  520.265956] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  520.265962] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  520.265969] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  520.265975] [<ffffffff80068988>] kthread+0x110/0x210
[  520.265980] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  520.265986] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  548.265761] watchdog: BUG: soft lockup - CPU#0 stuck for 495s! [rcu_exp_par_gp_:16]
[  548.265769] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  548.265874] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  548.265881] Tainted: [L]=SOFTLOCKUP
[  548.265884] Hardware name: Milk-V Pioneer (DT)
[  548.265886] epc : smp_call_function_single+0x188/0x1d0
[  548.265898]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  548.265907] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  548.265911]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  548.265915]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  548.265918]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  548.265921]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  548.265924]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  548.265927]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  548.265930]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  548.265933]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  548.265937]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  548.265939]  t5 : 000000000000001f t6 : 0000000000000030
[  548.265942] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  548.265946] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  548.265953] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  548.265960] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  548.265966] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  548.265972] [<ffffffff80068988>] kthread+0x110/0x210
[  548.265978] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  548.265983] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  549.729753] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  549.735687] rcu:     7-...0: (0 ticks this GP) idle=f98c/1/0x4000000000000000 softirq=383/383 fqs=35236
[  549.744830] rcu:     (detected by 51, t=133235 jiffies, g=729, q=929 ncpus=64)
[  549.751792] Sending NMI from CPU 51 to CPUs 7:
[  559.752022] rcu: rcu_sched kthread starved for 2497 jiffies! g729 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=53
[  559.766539] rcu:     Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[  559.775489] rcu: RCU grace-period kthread stack dump:
[  559.780536] task:rcu_sched       state:I stack:0     pid:15    tgid:15    ppid:2      task_flags:0x208040 flags:0x00000000
[  559.791576] Call Trace:
[  559.794022] [<ffffffff80cc1df6>] __schedule+0x40e/0x1060
[  559.799342] [<ffffffff80cc2a76>] schedule+0x2e/0x108
[  559.804307] [<ffffffff80cc9542>] schedule_timeout+0x8a/0x120
[  559.809965] [<ffffffff8010e54a>] rcu_gp_fqs_loop+0x37a/0x420
[  559.815622] [<ffffffff8010e6c8>] rcu_gp_kthread+0xd8/0x180
[  559.821104] [<ffffffff80068988>] kthread+0x110/0x210
[  559.826069] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  559.832073] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  559.838337] rcu: Stack dump where RCU GP kthread last ran:
[  559.843818] Sending NMI from CPU 51 to CPUs 53:
[  559.848367] NMI backtrace for cpu 53 skipped: idling at default_idle_call+0x34/0xf0
[  576.265761] watchdog: BUG: soft lockup - CPU#0 stuck for 521s! [rcu_exp_par_gp_:16]
[  576.265770] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  576.265875] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  576.265882] Tainted: [L]=SOFTLOCKUP
[  576.265885] Hardware name: Milk-V Pioneer (DT)
[  576.265888] epc : smp_call_function_single+0x188/0x1d0
[  576.265900]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  576.265909] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  576.265913]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  576.265917]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  576.265920]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  576.265923]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  576.265926]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  576.265930]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  576.265933]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  576.265936]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  576.265939]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  576.265943]  t5 : 000000000000001f t6 : 0000000000000030
[  576.265946] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  576.265950] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  576.265957] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  576.265964] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  576.265970] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  576.265977] [<ffffffff80068988>] kthread+0x110/0x210
[  576.265982] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  576.265988] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  604.265763] watchdog: BUG: soft lockup - CPU#0 stuck for 547s! [rcu_exp_par_gp_:16]
[  604.265771] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  604.265877] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  604.265884] Tainted: [L]=SOFTLOCKUP
[  604.265887] Hardware name: Milk-V Pioneer (DT)
[  604.265890] epc : smp_call_function_single+0x188/0x1d0
[  604.265901]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  604.265910] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  604.265914]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  604.265918]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  604.265921]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  604.265925]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  604.265928]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  604.265931]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  604.265935]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  604.265938]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  604.265942]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  604.265945]  t5 : 000000000000001f t6 : 0000000000000030
[  604.265948] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  604.265952] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  604.265959] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  604.265966] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  604.265973] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  604.265979] [<ffffffff80068988>] kthread+0x110/0x210
[  604.265985] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  604.265991] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  622.865755] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  622.871686] rcu:     7-...0: (0 ticks this GP) idle=f98c/1/0x4000000000000000 softirq=383/383 fqs=38231
[  622.880825] rcu:     (detected by 32, t=151519 jiffies, g=729, q=973 ncpus=64)
[  622.887784] Sending NMI from CPU 32 to CPUs 7:
[  632.265762] watchdog: BUG: soft lockup - CPU#0 stuck for 573s! [rcu_exp_par_gp_:16]
[  632.265771] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  632.265876] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  632.265884] Tainted: [L]=SOFTLOCKUP
[  632.265887] Hardware name: Milk-V Pioneer (DT)
[  632.265890] epc : smp_call_function_single+0x188/0x1d0
[  632.265900]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  632.265909] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  632.265913]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  632.265917]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  632.265920]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  632.265924]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  632.265927]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  632.265930]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  632.265933]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  632.265937]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  632.265940]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  632.265944]  t5 : 000000000000001f t6 : 0000000000000030
[  632.265946] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  632.265950] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  632.265958] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  632.265965] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  632.265971] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  632.265978] [<ffffffff80068988>] kthread+0x110/0x210
[  632.265983] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  632.265989] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  632.888017] rcu: rcu_sched kthread starved for 2493 jiffies! g729 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=55
[  632.898100] rcu:     Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[  632.907049] rcu: RCU grace-period kthread stack dump:
[  632.912095] task:rcu_sched       state:I stack:0     pid:15    tgid:15    ppid:2      task_flags:0x208040 flags:0x00000000
[  632.923133] Call Trace:
[  632.925579] [<ffffffff80cc1df6>] __schedule+0x40e/0x1060
[  632.930894] [<ffffffff80cc2a76>] schedule+0x2e/0x108
[  632.935858] [<ffffffff80cc9542>] schedule_timeout+0x8a/0x120
[  632.941515] [<ffffffff8010e54a>] rcu_gp_fqs_loop+0x37a/0x420
[  632.947171] [<ffffffff8010e6c8>] rcu_gp_kthread+0xd8/0x180
[  632.952653] [<ffffffff80068988>] kthread+0x110/0x210
[  632.957616] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  632.963619] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  632.969885] rcu: Stack dump where RCU GP kthread last ran:
[  632.975364] Sending NMI from CPU 32 to CPUs 55:
[  632.979912] NMI backtrace for cpu 55 skipped: idling at default_idle_call+0x34/0xf0
[  660.265764] watchdog: BUG: soft lockup - CPU#0 stuck for 599s! [rcu_exp_par_gp_:16]
[  660.265773] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  660.265877] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  660.265885] Tainted: [L]=SOFTLOCKUP
[  660.265887] Hardware name: Milk-V Pioneer (DT)
[  660.265891] epc : smp_call_function_single+0x188/0x1d0
[  660.265902]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  660.265911] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  660.265915]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  660.265919]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  660.265923]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  660.265926]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  660.265929]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  660.265933]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  660.265936]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  660.265940]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  660.265943]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  660.265946]  t5 : 000000000000001f t6 : 0000000000000030
[  660.265949] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  660.265953] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  660.265960] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  660.265967] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  660.265974] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  660.265980] [<ffffffff80068988>] kthread+0x110/0x210
[  660.265986] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  660.265991] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  688.265761] watchdog: BUG: soft lockup - CPU#0 stuck for 625s! [rcu_exp_par_gp_:16]
[  688.265770] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  688.265875] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  688.265883] Tainted: [L]=SOFTLOCKUP
[  688.265885] Hardware name: Milk-V Pioneer (DT)
[  688.265888] epc : smp_call_function_single+0x188/0x1d0
[  688.265899]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  688.265907] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  688.265911]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  688.265915]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  688.265918]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  688.265921]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  688.265924]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  688.265927]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  688.265930]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  688.265933]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  688.265937]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  688.265940]  t5 : 000000000000001f t6 : 0000000000000030
[  688.265942] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  688.265946] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  688.265953] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  688.265960] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  688.265966] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  688.265973] [<ffffffff80068988>] kthread+0x110/0x210
[  688.265978] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  688.265984] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  696.013757] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  696.019693] rcu:     7-...0: (0 ticks this GP) idle=f98c/1/0x4000000000000000 softirq=383/383 fqs=41159
[  696.028835] rcu:     (detected by 21, t=169807 jiffies, g=729, q=1213 ncpus=64)
[  696.035882] Sending NMI from CPU 21 to CPUs 7:
[  704.357758] watchdog: CPU52: Watchdog detected hard LOCKUP on cpu 53
[  704.368563] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  706.036116] rcu: rcu_sched kthread starved for 2498 jiffies! g729 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=53
[  706.046200] rcu:     Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[  706.055149] rcu: RCU grace-period kthread stack dump:
[  706.060196] task:rcu_sched       state:I stack:0     pid:15    tgid:15    ppid:2      task_flags:0x208040 flags:0x00000000
[  706.071237] Call Trace:
[  706.073683] [<ffffffff80cc1df6>] __schedule+0x40e/0x1060
[  706.079000] [<ffffffff80cc2a76>] schedule+0x2e/0x108
[  706.083966] [<ffffffff80cc9542>] schedule_timeout+0x8a/0x120
[  706.089625] [<ffffffff8010e54a>] rcu_gp_fqs_loop+0x37a/0x420
[  706.095282] [<ffffffff8010e6c8>] rcu_gp_kthread+0xd8/0x180
[  706.100764] [<ffffffff80068988>] kthread+0x110/0x210
[  706.105728] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  706.111733] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  706.117997] rcu: Stack dump where RCU GP kthread last ran:
[  706.123478] Sending NMI from CPU 21 to CPUs 53:
[  706.128026] NMI backtrace for cpu 53 skipped: idling at default_idle_call+0x34/0xf0
[  716.265761] watchdog: BUG: soft lockup - CPU#0 stuck for 652s! [rcu_exp_par_gp_:16]
[  716.265769] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  716.265874] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  716.265882] Tainted: [L]=SOFTLOCKUP
[  716.265884] Hardware name: Milk-V Pioneer (DT)
[  716.265887] epc : smp_call_function_single+0x188/0x1d0
[  716.265900]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  716.265907] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  716.265911]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  716.265915]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  716.265918]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  716.265922]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  716.265925]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  716.265928]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  716.265931]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  716.265934]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  716.265937]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  716.265940]  t5 : 000000000000001f t6 : 0000000000000030
[  716.265943] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  716.265947] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  716.265955] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  716.265962] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  716.265969] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  716.265975] [<ffffffff80068988>] kthread+0x110/0x210
[  716.265981] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  716.265987] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18
[  744.265763] watchdog: BUG: soft lockup - CPU#0 stuck for 678s! [rcu_exp_par_gp_:16]
[  744.265773] Modules linked in: radeon(+) binfmt_misc nls_ascii nls_cp437 vfat fat snd_hda_intel snd_intel_dspcfg video snd_hda_codec drm_exec drm_suballoc_helper drm_ttm_helper snd_hda_core ttm snd_hwdep drm_client_lib drm_disp
lay_helper snd_pcm cec rc_core snd_timer ofpart drm_kms_helper snd spi_nor i2c_algo_bit soundcore mtd sg2042_mcu pwm_sophgo_sg2042 drm configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 ahci libahci xhci_pci lib
ata xhci_hcd r8169 nvme usbcore realtek sdhci_of_dwcmshc mdio_devres nvme_core of_mdio sdhci_pltfm fixed_phy scsi_mod fwnode_mdio sdhci libphy nvme_keyring cqhci nvme_auth mdio_bus hkdf usb_common scsi_common mmc_core gpio_dwapb i
2c_designware_platform spi_sg2044_nor
[  744.265879] CPU: 0 UID: 0 PID: 16 Comm: rcu_exp_par_gp_ Tainted: G             L      6.18.2-revyos #2025.12.18.20.03+f49a0d2be PREEMPTLAZY 
[  744.265887] Tainted: [L]=SOFTLOCKUP
[  744.265890] Hardware name: Milk-V Pioneer (DT)
[  744.265892] epc : smp_call_function_single+0x188/0x1d0
[  744.265905]  ra : __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  744.265912] epc : ffffffff801547e0 ra : ffffffff80109cf0 sp : ffffffc604b3bcd0
[  744.265916]  gp : ffffffff8227ac38 tp : ffffffd7003ecd80 t0 : ffffffff80022658
[  744.265920]  t1 : 0000000000000000 t2 : 000000000000000c s0 : ffffffc604b3bd50
[  744.265923]  s1 : ffffffff8109f300 a0 : 000000000000000b a1 : ffffffc600016300
[  744.265927]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000001
[  744.265930]  a5 : 0000000000000001 a6 : 000000000000000b a7 : 0000000000735049
[  744.265933]  s2 : 000000000000000b s3 : ffffffff8010a270 s4 : 0000000000000000
[  744.265937]  s5 : 000000000000000b s6 : 000000000000003f s7 : 0000000000000001
[  744.265940]  s8 : 0000000000000040 s9 : ffffffff820af3f0 s10: ffffffc60015fec0
[  744.265943]  s11: 0000000000000800 t3 : 0000000000000004 t4 : 0000000000000001
[  744.265946]  t5 : 000000000000001f t6 : 0000000000000030
[  744.265949] status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000005
[  744.265953] [<ffffffff801547e0>] smp_call_function_single+0x188/0x1d0
[  744.265960] [<ffffffff80109cf0>] __sync_rcu_exp_select_node_cpus+0x1d0/0x4c0
[  744.265967] [<ffffffff80109ffa>] sync_rcu_exp_select_node_cpus+0x1a/0x30
[  744.265974] [<ffffffff80069cca>] kthread_worker_fn+0xe2/0x260
[  744.265980] [<ffffffff80068988>] kthread+0x110/0x210
[  744.265986] [<ffffffff80015df8>] ret_from_fork_kernel+0x18/0x1c0
[  744.265992] [<ffffffff80ccceee>] ret_from_fork_kernel_asm+0x16/0x18