[Bug 266735] Getting Lock order reversal: bpf global lock, iflib ctx lock error when booting machine
Date: Sat, 01 Oct 2022 08:26:31 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266735 Bug ID: 266735 Summary: Getting Lock order reversal: bpf global lock, iflib ctx lock error when booting machine Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: burak.sn@outlook.com Hi, I am currently testing FreeBSD 14.0 Current FreeBSD alfadev 14.0-CURRENT FreeBSD 14.0-CURRENT #1: Fri Sep 30 11:55:56 +03 2022 When machine has started I am getting Lock order reversal messages from kernel : Oct 1 10:24:17 alfa kernel: em1: link state changed to DOWN Oct 1 10:24:18 alfa kernel: lock order reversal: Oct 1 10:24:18 alfa kernel: 1st 0xffffffff81f966a8 bpf global lock (bpf global lock, sx) @ /usr/src/sys/net/bpf.c:1518 Oct 1 10:24:18 alfa kernel: 2nd 0xfffff80003c24d80 iflib ctx lock (iflib ctx lock, sx) @ /usr/src/sys/net/iflib.c:4373 Oct 1 10:24:18 alfa kernel: lock order iflib ctx lock -> bpf global lock established at: Oct 1 10:24:18 alfa kernel: #0 0xffffffff80c5eacd at witness_checkorder+0x32d Oct 1 10:24:18 alfa kernel: #1 0xffffffff80bf8dd3 at _sx_xlock+0x63 Oct 1 10:24:18 alfa kernel: #2 0xffffffff80d111b8 at bpfattach2+0xd8 Oct 1 10:24:18 alfa kernel: #3 0xffffffff80d2178b at ether_ifattach+0xeb Oct 1 10:24:18 alfa kernel: #4 0xffffffff80d35bbb at iflib_device_register+0xceb Oct 1 10:24:18 alfa kernel: #5 0xffffffff80d3a2c5 at iflib_device_attach+0xb5 Oct 1 10:24:18 alfa kernel: #6 0xffffffff80c2a801 at device_attach+0x3c1 Oct 1 10:24:18 alfa kernel: #7 0xffffffff80c2a3b0 at device_probe_and_attach+0x70 Oct 1 10:24:18 alfa kernel: #8 0xffffffff80c2b9f8 at bus_generic_attach+0x18 Oct 1 10:24:18 alfa kernel: #9 0xffffffff8083c920 at pci_attach+0xe0 Oct 1 10:24:18 alfa kernel: #10 0xffffffff80fdf759 at acpi_pci_attach+0x19 Oct 1 10:24:18 alfa kernel: #11 0xffffffff80c2a801 at device_attach+0x3c1 Oct 1 10:24:18 alfa kernel: #12 0xffffffff80c2a3b0 at device_probe_and_attach+0x70 Oct 1 10:24:18 alfa kernel: #13 0xffffffff80c2b9f8 at bus_generic_attach+0x18 Oct 1 10:24:18 alfa kernel: #14 0xffffffff80fe3490 at acpi_pcib_pci_attach+0xa0 Oct 1 10:24:18 alfa kernel: #15 0xffffffff80c2a801 at device_attach+0x3c1 Oct 1 10:24:18 alfa kernel: #16 0xffffffff80c2a3b0 at device_probe_and_attach+0x70 Oct 1 10:24:18 alfa kernel: #17 0xffffffff80c2b9f8 at bus_generic_attach+0x18 Oct 1 10:24:18 alfa kernel: lock order bpf global lock -> iflib ctx lock attempted at: Oct 1 10:24:18 alfa kernel: #0 0xffffffff80c5f39d at witness_checkorder+0xbfd Oct 1 10:24:18 alfa kernel: #1 0xffffffff80bf8dd3 at _sx_xlock+0x63 Oct 1 10:24:18 alfa kernel: #2 0xffffffff80d41a6f at iflib_if_ioctl+0x2df Oct 1 10:24:18 alfa kernel: #3 0xffffffff80d1c9ce at if_setflag+0xde Oct 1 10:24:18 alfa kernel: #4 0xffffffff80d1c89a at ifpromisc+0x2a Oct 1 10:24:18 alfa kernel: #5 0xffffffff80d1374d at bpfioctl+0xe9d Oct 1 10:24:18 alfa kernel: #6 0xffffffff80a7e1cd at devfs_ioctl+0xcd Oct 1 10:24:18 alfa kernel: #7 0xffffffff80cf6eb1 at vn_ioctl+0x131 Oct 1 10:24:18 alfa kernel: #8 0xffffffff80a7e87e at devfs_ioctl_f+0x1e Oct 1 10:24:18 alfa kernel: #9 0xffffffff80c65102 at kern_ioctl+0x202 Oct 1 10:24:18 alfa kernel: #10 0xffffffff80c64e4a at sys_ioctl+0x12a Oct 1 10:24:18 alfa kernel: #11 0xffffffff8110541e at amd64_syscall+0x12e Oct 1 10:24:18 alfa kernel: #12 0xffffffff810d8c5b at fast_syscall_common+0xf8 I didn't recognize any problem while getting above messages. -- You are receiving this mail because: You are the assignee for the bug.