sorry in my last mail i sent the wrong linux kernel version here it is. Linux imx6ulevk 4.1.15-2.1.0+g30278ab #31 SMP PREEMPT Mon Sep 11 11:31:00 IST 2017 armv7l GNU/Linux On Mon, Sep 11, 2017 at 7:47 PM, prabhu kalyan <kalyanxprabhu@xxxxxxxxx> wrote: > the file > > On Mon, Sep 11, 2017 at 7:46 PM, prabhu kalyan <kalyanxprabhu@xxxxxxxxx> wrote: >> Dear Fabio, >> >> My main objective is to switch between HID, VCP, Mass storage mode. >> But as the g_hid.ko crashes i am not able to switch mode. >> >> I am using nxp kernel Linux cpu49-ub 4.4.0-31-generic >> #50~14.04.1-Ubuntu SMP Wed Jul 13 01:06:37 UTC 2016 i686 i686 i686 >> GNU/Linux >> >> Can you please check if it happens to you on your architecture and >> also check that the g_hid.c file i have attached is there anything >> wrong. >> >> one more question. can it be possible to combine serial and HID >> through libcomposit then how? >> >> Regards Prabhu >> >> On Mon, Sep 11, 2017 at 7:36 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote: >>> On Mon, Sep 11, 2017 at 10:32 AM, PRABHU <prabhu.rout@xxxxxxxxxxxxxxxxxx> wrote: >>>> Dear all, >>>> I was trying to do a stress test on module insertion and removal. 1st time >>>> modprobe g_hid and rmmod g_hid works. second time when doing insmod g_hid >>>> crashes the core. >>>> >>>> crash trace >>>> ---------------- >>>> >>>> root@imx6ulevk:~# modprobe ci_hdrc ci_hdrc.0: Device No Response >>>> g_hid >>>> Unable to handle kernel paging request at virtual address 7f09b664 >>>> pgd = 88a78000 >>>> [7f09b664] *pgd=88576811, *pte=00000000, *ppte=00000000 >>>> Internal error: Oops: 807 [#1] PREEMPT SMP ARM >>>> Modules linked in: g_hid(+) usb_f_hid libcomposite configfs ci_hdrc_imx >>>> usbmisc_imx ci_hdrc evbug uio_pdrv_genirq uio [last unloaded: g_hid] >>>> CPU: 0 PID: 679 Comm: modprobe Not tainted 4.1.15-2.1.0+g30278ab #31 >>> >>> Looks like you are using a vendor kernel. >>> >>> Could you try this on a mainline 4.13.1 kernel instead? >>> -- >>> 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 -- 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
