Date: Sun, 23 Jul 2017 20:20:07 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: FreeBSD Stable <freebsd-stable@FreeBSD.org> Subject: Re: stable/11: Kernel page fault with the following non-sleepable locks held: CAM device lock Message-ID: <5974A287.8060101@grosbein.net> In-Reply-To: <59749E58.2060408@grosbein.net> References: <59749E58.2060408@grosbein.net>
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On 23.07.2017 20:02, Eugene Grosbein wrote: > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0xa > fault code = supervisor read data, page not present > instruction pointer = 0x20:0xffffffff80e494e1 > stack pointer = 0x28:0xfffffe04675ff670 > frame pointer = 0x28:0xfffffe04675ff670 > 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 = 1387 (smartd) > trap number = 12 > panic: page fault > cpuid = 0 I also have a screenshot of another case of same panic that notes lock order reversal: (Giant after non-sleepable): http://www.grosbein.net/freebsd/crash.png
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