Hi, i'm using a iMX233-OLinuXino board and the kernel panics during shutdown with 4.8.0-rc2-next-20160819: [ 420.040000] ci_hdrc ci_hdrc.0: remove, state 1 [ 420.050000] usb usb1: USB disconnect, device number 1 [ 420.060000] usb 1-1: USB disconnect, device number 2 [ 420.060000] usb 1-1.1: USB disconnect, device number 3 [ 420.090000] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx' usb-ci_hdrc.0-1.1, smsc95xx USB 2.0 Ethernet [ 420.290000] ci_hdrc ci_hdrc.0: USB bus 1 deregistered [ 420.300000] Unable to handle kernel NULL pointer dereference at virtual address 00000118 [ 420.300000] pgd = c2ea4000 [ 420.300000] [00000118] *pgd=00000000 [ 420.300000] Internal error: Oops: 5 [#1] ARM [ 420.300000] Modules linked in: [ 420.300000] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.8.0-rc2-next-20160819 #1 [ 420.300000] Hardware name: Freescale MXS (Device Tree) [ 420.300000] task: c3490000 task.stack: c348e000 [ 420.300000] PC is at usb_hcd_irq+0x0/0x34 [ 420.300000] LR is at ci_irq+0x58/0x12c [ 420.300000] pc : [<c042969c>] lr : [<c0448afc>] psr: a0000093 [ 420.300000] sp : c348fd20 ip : c348fcd8 fp : c3704624 [ 420.300000] r10: c3708300 r9 : c3602010 r8 : 60000013 [ 420.300000] r7 : 00000094 r6 : 20000013 r5 : c3549600 r4 : c3602010 [ 420.300000] r3 : 000012a0 r2 : 08080000 r1 : 00000000 r0 : 00000094 [ 420.300000] Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none [ 420.300000] Control: 0005317f Table: 42ea4000 DAC: 00000051 [ 420.300000] Process systemd-shutdow (pid: 1, stack limit = 0xc348e190) [ 420.300000] Stack: (0xc348fd20 to 0xc3490000) [ 420.300000] fd20: c3549610 c3549600 20000013 c006bfac c3549600 00000000 00000094 c3602010 [ 420.300000] fd40: c370e2e0 c36f4e80 c36f4e80 00000005 c370e2e0 c006c098 c348fd70 c3704410 [ 420.300000] fd60: c370e2e0 c039cd68 00000005 a0000013 c36f4e00 c370e2e0 a0000013 c039ce0c [ 420.300000] fd80: c354b844 c348fe5c 00000000 c08d604c c3704624 c370e2e0 00000001 c3704410 [ 420.300000] fda0: c08bc194 c08ad460 c354b844 c348fe5c 00000000 c08d604c be829c58 c03997e8 [ 420.300000] fdc0: c3704444 c3704410 c08ad460 c0399954 c3402a4c c3704410 c08ad460 c0398d64 [ 420.300000] fde0: c3704410 c354b810 c112ebf4 c0396e2c c3490000 00000007 00000006 c348fe5c [ 420.300000] fe00: c3704400 c3704410 c354b810 c354b844 c348fe5c c039bb90 c3704400 c3708090 [ 420.300000] fe20: c354b810 c039c118 00000000 c044941c c354b800 c044e6f8 c354b810 c03a47fc [ 420.300000] fe40: c354b810 c354b410 c112ebf4 c039b578 c354b810 c0397410 00000002 c08ad22c [ 420.300000] fe60: c342fa20 c354b81c 4321fedc c0866838 cdef0123 f3f82200 c000a484 c348e000 [ 420.300000] fe80: 00000000 c00427f4 4321fedc c0042a10 00000000 00000000 c348fec8 00000029 [ 420.300000] fea0: c2e2d488 00000000 c34b9c28 00000002 c00690fc 00000000 00000000 c0132e0c [ 420.300000] fec0: 00000000 00000000 be8291f8 00000004 be829f8a 00000010 be829224 00000005 [ 420.300000] fee0: be8292c4 0000000f 7f5fb9f8 00000001 be828d3c c08629b4 c348ffb0 00053177 [ 420.300000] ff00: 000007ff 000f0f24 c2e2d480 00000000 00000000 00000000 00000000 00000000 [ 420.300000] ff20: 00000000 00000000 00000001 00000000 00000029 c348fec8 00000005 00000000 [ 420.300000] ff40: 00000000 0004001e 00000005 be82924c 00000005 be82924c c348e000 00000000 [ 420.300000] ff60: 7f60e854 c0132f24 c348ff88 00000000 c2e2d480 c2e2d480 00000000 c0132f70 [ 420.300000] ff80: 00000000 c000a484 00000000 8102d190 8102c118 00000000 8102d190 8102c118 [ 420.300000] ffa0: 00000058 c000a2e0 00000000 8102d190 fee1dead 28121969 cdef0123 f3f82200 [ 420.300000] ffc0: 00000000 8102d190 8102c118 00000058 be829bc4 00000000 00000000 be829c58 [ 420.300000] ffe0: 7f60de4c be829b08 7f5ee114 b6e46088 60000010 fee1dead 00000000 00000000 [ 420.300000] [<c042969c>] (usb_hcd_irq) from [<c3549600>] (0xc3549600) [ 420.300000] Code: c077a4d4 c08b802c c08b8040 c08b7fb0 (e5913118) [ 420.300000] ---[ end trace 5e83b1955a5bd084 ]--- [ 420.620000] systemd-shutdow: 2 output lines suppressed due to ratelimiting [ 420.620000] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 420.620000] [ 420.620000] ---[ end Kernel panic - not syncing: Attempted to kill init! I will try to bisect this issue. Regards Stefan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
