Date: Fri, 10 Oct 2014 14:08:13 -0700 From: Navdeep Parhar <np@FreeBSD.org> To: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: panic in ivy_rng_store() when compiled with -O0 Message-ID: <54384ABD.5080806@FreeBSD.org>
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I built my kernel + modules (head as of today) with -O0 and now it panics during boot. I did bump up KSTACK_PAGES significantly so that's not the problem. I'm going to take out the RNG device next and see if I can get past this. Regards, Navdeep Fatal trap 9: general protection fault while in kernel mode cpuid = 0; apic id = 00 instruction pointer = 0x20:0xffffffff814ac661 stack pointer = 0x28:0xfffffe01ed6c6930 frame pointer = 0x28:0xfffffe01ed6c6960 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 14 (rand_harvestq) [ thread pid 14 tid 100017 ] Stopped at ivy_rng_store+0x31: movq %rdi,(%rdi) db> bt Tracing pid 14 tid 100017 td 0xfffff800042c84c0 ivy_rng_store() at ivy_rng_store+0x31/frame 0xfffffe01ed6c6960 random_ivy_read() at random_ivy_read+0x78/frame 0xfffffe01ed6c6990 live_entropy_sources_feed() at live_entropy_sources_feed+0x73/frame 0xfffffe01ed6c69d0 random_kthread() at random_kthread+0x224/frame 0xfffffe01ed6c6a30 fork_exit() at fork_exit+0x14a/frame 0xfffffe01ed6c6ab0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe01ed6c6ab0 --- trap 0, rip = 0, rsp = 0xfffffe01ed6c6b70, rbp = 0 ---
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