https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263783
--- Comment #35 from Zhenlei Huang <z...@freebsd.org> --- For the backtrace, > Fatal trap 12: page fault while in kernel mode > cpuid = 2; apic id = 02 > fault virtual address = 0x28 ... > if_alloc_domain() at if_alloc_domain+0xa4/frame 0xfffffe006abeae80 > umb_attach_task() at umb_attach_task+0x37/frame 0xfffffe006abeaeb0 > usb_process() at usb_process+0x100/frame 0xfffffe006abeaef0 > fork_exit() at fork_exit+0x7e/frame 0xfffffe006abeaf30 > fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe006abeaf30 A quick look at `usb_process()` and `umb_attach_task()`, I suspect that the vnet is not correctly set. With the option INVARIANTS or VNET_DEBUG on, the recent change [1] ( has been MFCed to stable/14 and stable/13 branches ) can easily spot that. I do not have hardware to test. Can someone re-test the driver against latest main or stable branches ? 1. https://cgit.freebsd.org/src/commit/?id=d1d839d0b593541174ca48c675c9eff4ddb4715e -- You are receiving this mail because: You are the assignee for the bug.