Date: Tue, 12 Nov 2024 15:19:38 +0000 From: bugzilla-noreply@freebsd.org To: usb@FreeBSD.org Subject: [Bug 263783] USB MBIM: Support for LTE/4G USB modems (MBIM) Message-ID: <bug-263783-19105-Qkz2n9bOhm@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-263783-19105@https.bugs.freebsd.org/bugzilla/> References: <bug-263783-19105@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D263783 --- Comment #35 from Zhenlei Huang <zlei@FreeBSD.org> --- For the backtrace,=20 > Fatal trap 12: page fault while in kernel mode > cpuid =3D 2; apic id =3D 02 > fault virtual address =3D 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 late= st main or stable branches ? 1. https://cgit.freebsd.org/src/commit/?id=3Dd1d839d0b593541174ca48c675c9eff4d= db4715e --=20 You are receiving this mail because: You are the assignee for the bug.=
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