Date: Fri, 16 Jan 2026 02:35:00 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 292493] [lagg] Protocol replacement synchronization failure leading to Panic Message-ID: <bug-292493-227-Vlaoad7of0@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-292493-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292493 --- Comment #3 from Gui-Dong Han <hanguidong02@gmail.com> --- Observed Crash Scenarios (timing-dependent, including but not limited to): Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x0 fault code = supervisor read instruction, page not present instruction pointer = 0x20:0x0 stack pointer = 0x28:0xfffffe0068f55948 frame pointer = 0x28:0xfffffe0068f55970 code segment = base rx0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, IOPL = 0 current process = 1040 (poc) rdi: fffff80004444200 rsi: fffff80004f5d900 rdx: 9c58554433221100 rcx: fffffe0068f55ac0 r8: 0008a2ff10fc9c58 r9: fffff80004f5d960 rax: 0000000000000000 rbx: fffff800036fc000 rbp: fffffe0068f55970 r10: 0000000000000090 r11: fffff80004f74000 r12: 000000000000000e r13: 0000000000000008 r14: fffffe0068f55ac0 r15: fffff800036fc000 trap number = 12 panic: page fault cpuid = 0 time = 1765738480 KDB: stack backtrace: #0 0xffffffff80ba8f1d at kdb_backtrace+0x5d #1 0xffffffff80b5aa11 at vpanic+0x161 #2 0xffffffff80b5a8a3 at panic+0x43 #3 0xffffffff8104dbfa at trap_pfault+0x3da #4 0xffffffff81023dd8 at calltrap+0x8 #5 0xffffffff80c85a50 at ether_output+0x6b0 #6 0xffffffff80d21998 at ip_output+0x13a8 #7 0xffffffff80d52c40 at udp_send+0xb60 #8 0xffffffff80c0145c at sosend_dgram+0x31c #9 0xffffffff80c0242f at sousrsend+0x5f #10 0xffffffff80c0aec0 at kern_sendit+0x1c0 #11 0xffffffff80c0b1f2 at sendit+0x1b2 #12 0xffffffff80c0b02d at sys_sendto+0x4d #13 0xffffffff8104e547 at amd64_syscall+0x117 #14 0xffffffff810246eb at fast_syscall_common+0xf8 Fatal trap 12: page fault while in kernel mode cpuid = 2; apic id = 02 fault virtual address = 0x40 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff82825bdd stack pointer = 0x28:0xfffffe0068fc58c0 frame pointer = 0x28:0xfffffe0068fc58d0 code segment = base rx0, limit 0xfffff, type 0x1b [TOCTOU_DEBUG] SIOCSLAGG: Change! = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, IOPL = 0 current process = 860 (poc) rdi: fffff8000363c000 rsi: 00000000d1f2023f rdx: 00000000000000ff rcx: fffffe0068fc58ec r8: 0000000000000800 r9: 0000000000000008 rax: 0000000000000000 rbx: fffff80004a08300 rbp: fffffe0068fc58d0 r10: fffffe0068fc5800 r11: 00fff58b8d9e8b8c r12: 000000000000000e [TOCTOU_DEBUG] SIOCSLAGG: Change! r13: 0000000000000008 r14: fffff8000363c000 r15: fffff80003624800 trap number = 12 panic: page fault cpuid = 2 time = 1765735007 KDB: stack backtrace: #0 0xffffffff80ba8f1d at kdb_backtrace+0x5d #1 0xffffffff80b5aa11 at vpanic+0x161 #2 0xffffffff80b5a8a3 at panic+0x43 #3 0xffffffff8104dbfa at trap_pfault+0x3da #4 0xffffffff81023e88 at calltrap+0x8 #5 0xffffffff82821f7a at lagg_lacp_start+0x1a #6 0xffffffff8281fa25 at lagg_transmit_ethernet+0xb5 #7 0xffffffff80c85c5c at ether_output_frame+0xcc #8 0xffffffff80c85a50 at ether_output+0x6b0 #9 0xffffffff80d21a48 at ip_output+0x13a8 #10 0xffffffff80d52cf0 at udp_send+0xb60 #11 0xffffffff80c0145c at sosend_dgram+0x31c #12 0xffffffff80c0242f at sousrsend+0x5f #13 0xffffffff80c0aec0 at kern_sendit+0x1c0 #14 0xffffffff80c0b1f2 at sendit+0x1b2 #15 0xffffffff80c0b02d at sys_sendto+0x4d #16 0xffffffff8104e547 at amd64_syscall+0x117 #17 0xffffffff8102479b at fast_syscall_common+0xf8 -- You are receiving this mail because: You are the assignee for the bug.home | help
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