On Fri, Jan 18, 2019 at 3:54 PM Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx> wrote: > > Hi Pintu-san, > > On 1/18/2019 3:38 PM, Pintu Agarwal wrote: > > Hi All, > > > > Currently, I am trying to debug a boot up crash on some qualcomm > > snapdragon arm64 board with kernel 4.9. > > I could find the cause of the failure, but I am unable to locate from > > which subsystem/drivers this is getting triggered. > > If you have any ideas or suggestions to locate the issue, please let me know. > > > > This is the snapshot of crash logs: > > [ 6.907065] Unable to handle kernel NULL pointer dereference at > > virtual address 00000000 > > [ 6.973938] PC is at 0x0 > > [ 6.976503] LR is at __ipipe_ack_fasteoi_irq+0x28/0x38 > > [ 7.151078] Process qmp_aop (pid: 24, stack limit = 0xfffffffbedc18000) > > [ 7.242668] [< (null)>] (null) > > [ 7.247416] [<ffffff9469f8d2e0>] __ipipe_dispatch_irq+0x78/0x340 > > [ 7.253469] [<ffffff9469e81564>] __ipipe_grab_irq+0x5c/0xd0 > > [ 7.341538] [<ffffff9469e81d68>] gic_handle_irq+0xc0/0x154 > > > > [ 6.288581] [PINTU]: __ipipe_ack_fasteoi_irq - called > > [ 6.293698] [PINTU]: __ipipe_ack_fasteoi_irq: > > desc->irq_data.chip->irq_hold is NULL > > > > When I check, I found that the irq_hold implementation is missing in > > one of the irq_chip driver (expected by ipipe), which I am supposed to > > implement. > > > > But I am unable to locate which irq_chip driver. > > If there are any good techniques to locate this in kernel, please help. > > > > Could you please tell which QCOM SoC this board is based on? > Snapdragon 845 with kernel 4.9.x I want to know from which subsystem it is triggered:drivers/soc/qcom/ > > -- > QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member > of Code Aurora Forum, hosted by The Linux Foundation _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
