> On 6 Nov 2016, at 19:41, Scott Long <scottl_at_samsco.org> wrote: > > >> On Nov 6, 2016, at 11:01 AM, Michael Tuexen <tuexen_at_FreeBSD.org> wrote: >> >>> On 6 Nov 2016, at 15:39, Konstantin Belousov <kostikbel_at_gmail.com> wrote: >>> >>> On Sun, Nov 06, 2016 at 02:17:45PM +0100, Michael Tuexen wrote: >>>>> On 6 Nov 2016, at 13:28, Konstantin Belousov <kostikbel_at_gmail.com> wrote: >>>>> >>>>> On Sun, Nov 06, 2016 at 12:50:12PM +0100, Michael Tuexen wrote: >>>>>> bus_dmamap_create with the following non-sleepable locks held: >>>>>> exclusive sleep mutex mpt (mpt) r = 0 (0xfffffe0000e2f008) locked _at_ dev/mpt/mpt.c:2287 >>>>>> stack backtrace: >>>>>> #0 0xffffffff80ac0300 at witness_debugger+0x70 >>>>>> #1 0xffffffff80ac15e7 at witness_warn+0x3d7 >>>>>> #2 0xffffffff81055fef at bus_dmamap_create+0x2f >>>>>> #3 0xffffffff80678a25 at mpt_configure_ioc+0x3a5 >>>>>> #4 0xffffffff80677476 at mpt_attach+0x226 >>>>>> #5 0xffffffff80683299 at mpt_pci_attach+0x9c9 >>>>>> #6 0xffffffff80a9478d at device_attach+0x41d >>>>>> #7 0xffffffff80a9595a at bus_generic_attach+0x4a >>>>>> #8 0xffffffff806ebe75 at pci_attach+0xd5 >>>>>> #9 0xffffffff80a9478d at device_attach+0x41d >>>>>> #10 0xffffffff80a9595a at bus_generic_attach+0x4a >>>>>> #11 0xffffffff803c11a2 at acpi_pcib_acpi_attach+0x402 >>>>>> #12 0xffffffff80a9478d at device_attach+0x41d >>>>>> #13 0xffffffff80a9595a at bus_generic_attach+0x4a >>>>>> #14 0xffffffff803b4c8f at acpi_attach+0xdbf >>>>>> #15 0xffffffff80a9478d at device_attach+0x41d >>>>>> #16 0xffffffff80a9595a at bus_generic_attach+0x4a >>>>>> #17 0xffffffff80ee03e3 at nexus_acpi_attach+0x73 >>>>>> >>>>>> ... and so on. Not sure which revision introduced it... >>>>> r308268 >>>>> >>>>> I believe that this is an mpt(4) driver issue, which calls >>>>> bus_dmamap_create(9) with the mpt mutex held. >>>> OK. Whom to contact? Or are you willing to look into it? >>>> I haven't worked in that area... >>> >>> I am really not sure. Looking at the svn history is not very encouraging. >> Hmm. Time to change my setup, I guess... >>> >>> Might be try freebsd-scsi_at_ as well. >> I dropped them an e-mail... >> >> > > Please see my response on that list. Will do once it shows up in the archive since I'm not subscribed to that list... Best regards Michael > > Scott > >Received on Sun Nov 06 2016 - 18:19:28 UTC
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