On Fri, 24 Nov 2017 16:10:17 +0200, Felipe Balbi <balbi@xxxxxxxxxx> wrote: > $ gdb vmlinux > (gdb) l *(dwc3_gadget_ep_dequeue + 0x14c) > > > what does that give you? Note: this is a different debugging session, different traceback, but same kernel. $ gdb ./vmlinux [...] (gdb) target remote /dev/ttyUSB0 [...] (gdb) lx-symbols [...] (gdb) l *(dwc3_gadget_ep_dequeue + 0x14c) 0xf81b50ac is in dwc3_gadget_ep_dequeue (./include/linux/spinlock.h:342). 337 raw_spin_lock_nest_lock(spinlock_check(lock), nest_lock); \ 338 } while (0) 339 340 static __always_inline void spin_lock_irq(spinlock_t *lock) 341 { 342 raw_spin_lock_irq(&lock->rlock); 343 } 344 345 #define spin_lock_irqsave(lock, flags) \ 346 do { \ Which is likely the spin_lock_irqsave call early in the function. Regards, -- Vincent Pelletier -- 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