Date: Thu, 29 Oct 2015 17:08:27 +0100 From: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= <royger@FreeBSD.org> To: Oliver Pinter <oliver.pinter@hardenedbsd.org>, Adrian Chadd <adrian.chadd@gmail.com> Cc: "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org> Subject: Re: svn commit: r289834 - head/sys/x86/x86 Message-ID: <5632447B.1020402@FreeBSD.org> In-Reply-To: <CAPQ4fftgXgDV8YwhFqbAS1mdaiCh5t611gd3u_xNbwukwGiK1Q@mail.gmail.com> References: <201510231539.t9NFdxPe018130@repo.freebsd.org> <562A564D.9080703@citrix.com> <CAJ-Vmok2WnSe2DA6jf6eLsL=OGsUD2_1LgLFRJi3LAhYk5aMwA@mail.gmail.com> <562E1F8F.3010304@FreeBSD.org> <CAPQ4fft%2B4nSHSRAt%2BnD-DF7XW3W6RR-ADfhYYtgQLNyYCLqE-Q@mail.gmail.com> <CAJ-VmonEk76vZ%2BA=rTYN_H_gVkd2RpL=qJxa8mCPvcQonDOitg@mail.gmail.com> <CAPQ4fftgXgDV8YwhFqbAS1mdaiCh5t611gd3u_xNbwukwGiK1Q@mail.gmail.com>
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El 26/10/15 a les 15.24, Oliver Pinter ha escrit: > On 10/26/15, Adrian Chadd <adrian.chadd@gmail.com> wrote: >> Hi, >> >> I'll take a photo of it when it breaks next. >> >> Would you mind reverting it for now until we can figure it out? > > btw, this was the two kernel panic what I got: > > Fatal trap 12: page fault while in kernel mode > cpuid = 11; apic id = 03 > fault virtual address = 0x30 > fault code = supervisor read data, page not present > instruction pointer = 0x20:0xffffffff808a2d22 > stack pointer = 0x28:0xfffffe07cc75a6f0 > frame pointer = 0x28:0xfffffe07cc75a770 > 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 = 5 (doneq0) > trap number = 12 > panic: page fault > cpuid = 11 > KDB: stack backtrace: > #0 0xffffffff80641647 at kdb_backtrace+0x67 > #1 0xffffffff80606762 at vpanic+0x182 > #2 0xffffffff806067e3 at panic+0x43 > #3 0xffffffff8084eef1 at trap_fatal+0x351 > #4 0xffffffff8084f0e4 at trap_pfault+0x1e4 > #5 0xffffffff8084e82f at trap+0x4bf > #6 0xffffffff80830d57 at calltrap+0x8 > #7 0xffffffff8063beab at _bus_dmamap_load_ccb+0x1fb > #8 0xffffffff8063bc51 at bus_dmamap_load_ccb+0x91 > #9 0xffffffff8042dcad at ata_dmaload+0x11d > #10 0xffffffff8042df7e at ata_begin_transaction+0x7e > #11 0xffffffff8042c18e at ataaction+0x9ce > #12 0xffffffff802a220f at xpt_run_devq+0x5bf > #13 0xffffffff802a17ad at xpt_action_default+0x94d > #14 0xffffffff802c0024 at adastart+0x8b4 > #15 0xffffffff802a2e93 at xpt_run_allocq+0x193 > #16 0xffffffff802c0ea0 at adadone+0x280 > #17 0xffffffff802a5310 at xpt_done_process+0x3a0 > Uptime: 1m40s Hello, I've been able to reproduce this by tweaking blkfront dma tag, and the issue was due to an off-by-one error. I've got an updated patch that applies on top of current HEAD, would any of you two mind giving it a try? https://people.freebsd.org/~royger/bounce_load_ma.patch Thanks, Roger.
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