Date: Tue, 22 Oct 2013 16:01:01 -0400 From: J David <j.david.lists@gmail.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>, alc@freebsd.org, Andriy Gapon <avg@freebsd.org>, Alan Cox <alc@rice.edu> Subject: Re: 9.2 + ZFS + i386 = panic: pmap_enter: attempted pmap_enter on 4MB page Message-ID: <CABXB=RSrt_podJzh1ty=fO%2BADEDy2o3YumdJF64NbAErHbbvyw@mail.gmail.com> In-Reply-To: <20131022173557.GB5208@kib.kiev.ua> References: <20131015164537.GH3865@kib.kiev.ua> <525D7784.5000808@rice.edu> <20131016060010.GO3865@kib.kiev.ua> <CABXB=RR2C%2BpZAr%2BZDDCe%2Bxb=EG4AQL0_WyTQneGG1TW6Ghi7=w@mail.gmail.com> <CABXB=RQhsZKJi34gojN_96%2BTmJ9_DOsd-HyZ5wPLAsAPu1h7pg@mail.gmail.com> <20131017070949.GA3865@kib.kiev.ua> <CABXB=RSGpH3sFNo0i6jFr6mH-U79c-1kNA%2B2kZaj7rE9ENoLEA@mail.gmail.com> <CABXB=RTVpBYFy209ML-NMdNioTqJuYYkVv5L9zjRYB=7yemB1w@mail.gmail.com> <CABXB=RQe6rLui%2Bc8n-5kUwaaii%2BXmZpSuE60WFaZU3owv_-y9g@mail.gmail.com> <5266B0E9.3040206@FreeBSD.org> <20131022173557.GB5208@kib.kiev.ua>
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On Tue, Oct 22, 2013 at 1:35 PM, Konstantin Belousov <kostikbel@gmail.com> wrote: > One thing that catched my eye initially are very strange pointers in the > backtrace, like 'zio=0x883ca8b8'. The standard i386 address space map > splits user/kernel mode at 3GB, so 0x883ca8b8 is definitely usermode, > unless non-standard kernel config is used. The current kernel config for that machine is: options SW_WATCHDOG options KVA_PAGES=512 nodevice plip options DDB options BREAK_TO_DEBUGGER options INVARIANTS options INVARIANT_SUPPORT options WITNESS options DEBUG_LOCKS options DEBUG_VFS_LOCKS options DIAGNOSTIC It has been tried with and without KVA_PAGES=512. Doesn't seem to make a difference from a crashing-all-the-time standpoint. > This is why I asked for the gdb backtrace. That *was* a kgdb backtrace. Is there something else needed? Thanks!
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