On Tue, 21 Feb 2023 10:46:26 +0800, Hal Feng wrote: > This patch series adds basic clock, reset & DT support for StarFive > JH7110 SoC. Patch 17 depends on series [1] which provides pinctrl > dt-bindings. Patch 19 depends on series [2] which provides dt-bindings > of VisionFive 2 board and JH7110 SoC. > > You can simply review or test the patches at the link [3]. > > [1]: https://lore.kernel.org/all/20230209143702.44408-1-hal.feng@xxxxxxxxxxxxxxxx/ > [2]: https://lore.kernel.org/all/20230216131511.3327943-1-conor.dooley@xxxxxxxxxxxxx/ > [3]: https://github.com/hal-feng/linux/commits/visionfive2-minimal Hi Conor, When I tried to rebase these patches on v6.3-rc1, I found the kernel would crash on the VisionFive 2 board during startup. The logs are as below. I checkout the branch to the mainline and found that the kernel would also crash on the VisionFive board which is equipped with JH7100 SoC. -------------------------------- Unable to handle kernel paging request at virtual address 0000004cccccccd4 Oops [#1] Modules linked in: CPU: 3 PID: 87 Comm: udevd Not tainted 6.3.0-rc1-00019-g239e7809f291 #305 Hardware name: StarFive VisionFive 2 v1.3B (DT) epc : enqueue_timer+0x18/0x90 ra : internal_add_timer+0x2c/0x38 epc : ffffffff8006a714 ra : ffffffff8006a7b8 sp : ffffffc80443bc80 gp : ffffffff80eb5100 tp : ffffffd8c01db200 t0 : 0000000000000000 t1 : 000000000000000f t2 : 0000000038b3ea28 s0 : ffffffc80443bcb0 s1 : ffffffff80813940 a0 : ffffffff80813940 a1 : ffffffc80443bd48 a2 : 000000000000020b a3 : cccccccd0b000000 a4 : cccccccccccccccc a5 : 000000000000020b a6 : ffffffff80814a08 a7 : 0000000000000001 s2 : ffffffc80443bd48 s3 : 0000000008400040 s4 : ffffffff80813940 s5 : ffffffff80eea0b8 s6 : ffffffff80eb7220 s7 : 0000000000000040 s8 : ffffffff80eb61e0 s9 : 0000002ac84a2548 s10: 0000002ad53e92c0 s11: 0000000000000001 t3 : 000000000000003f t4 : 0000000000000000 t5 : 0000000000000004 t6 : 0000000000000003 status: 0000000200000100 badaddr: 0000004cccccccd4 cause: 000000000000000f [<ffffffff8006a714>] enqueue_timer+0x18/0x90 [<ffffffff8006aa64>] add_timer_on+0xf0/0x134 [<ffffffff80500f18>] try_to_generate_entropy+0x1ec/0x232 [<ffffffff8035a636>] urandom_read_iter+0x42/0xc2 [<ffffffff800fff16>] vfs_read+0x17c/0x1e4 [<ffffffff801005b6>] ksys_read+0x78/0x98 [<ffffffff801005e4>] sys_read+0xe/0x16 [<ffffffff800035dc>] ret_from_syscall+0x0/0x2 Code: 9381 9713 0037 0813 0705 983a 3703 0008 e198 c311 (e70c) d713 ---[ end trace 0000000000000000 ]--- note: udevd[87] exited with irqs disabled Segmentation fault FAIL Saving random seed: rcu: INFO: rcu_sched detected stalls on CPUs/tasks: rcu: 1-...0: (0 ticks this GP) idle=19c4/1/0x4000000000000000 softirq=42/42 fqs=7474 rcu: (detected by 2, t=15005 jiffies, g=-195, q=35 ncpus=4) Task dump for CPU 1: task:dd state:R running task stack:0 pid:92 ppid:88 flags:0x00000008 Call Trace: [<ffffffff80003764>] ret_from_fork+0x0/0xc rcu: INFO: rcu_sched detected stalls on CPUs/tasks: rcu: 1-...0: (0 ticks this GP) idle=19c4/1/0x4000000000000000 softirq=42/42 fqs=29814 rcu: (detected by 2, t=60018 jiffies, g=-195, q=35 ncpus=4) Task dump for CPU 1: task:dd state:R running task stack:0 pid:92 ppid:88 flags:0x00000008 Call Trace: [<ffffffff80003764>] ret_from_fork+0x0/0xc ... -------------------------------- I used 'git bisect' and found out the commit 9493e6f3ce02 is the cause. I tried to revert this commit on the tag v6.3-rc1, but it seems there is no improvement. Any options I am missing? Could you please give me some suggestions to adapt to the new changes between 6.2 and 6.3? Thank you in advance. Best regards, Hal
