Date: Tue, 10 Apr 2007 11:43:39 -0700 From: Barrett Lyon <blyon@blyon.com> To: current@freebsd.org Subject: failures with if_em on txcsum/rxcsum enabled Message-ID: <A1930A44-EBAF-46B0-96BD-5B4AE51C4884@blyon.com>
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I've been working on a number of problems related to the txcsum/ rxcsum options on if_em and if_mxge and with that stuff enabled while talking to a large range of HTTP hosts, it's causing crashes. It seems pretty consistent across the board with varying symptoms. This was built from today's tree: em0: discard frame w/o packet header Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xc fault code = supervisor read, page not present instruction pointer = 0x20:0xc06fd90c stack pointer = 0x28:0xe38bc9b8 frame pointer = 0x28:0xe38bc9e0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 26 (em0 taskq) trap number = 12 panic: page fault cpuid = 0 Uptime: 6m41s Physical memory: 2039 MB Dumping 245 MB: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x200 fault code = supervisor read, page not present instruction pointer = 0x20:0x200 stack pointer = 0x28:0xe38bc500 frame pointer = 0x28:0xe38bc510 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 26 (em0 taskq) trap number = 12 panic: page fault cpuid = 0 Uptime: 6m42s Automatic reboot in 15 seconds - press a key on the console to abort Rebooting... cpu_reset: Stopping other CPUs
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