Date: Fri, 24 Jun 2011 17:23:48 +0400 From: Andrey Chernov <ache@FreeBSD.ORG> To: "Justin T. Gibbs" <gibbs@FreeBSD.ORG>, "Kenneth D. Merry" <ken@FreeBSD.ORG>, Kostik Belousov <kostikbel@gmail.com>, Eir Nym <eirnym@gmail.com>, current@FreeBSD.ORG, will@FreeBSD.ORG Subject: Re: Exactly that commit (was Re: Latest -current 100% hang at the late boot stage) Message-ID: <20110624132348.GA71363@vniz.net> In-Reply-To: <20110624130826.GA71185@vniz.net> References: <20110620070222.GA74009@vniz.net> <20110620080146.GF48734@deviant.kiev.zoral.com.ua> <20110620114656.GA83524@vniz.net> <20110621161719.GA16166@nargothrond.kdm.org> <20110621204934.GB9877@vniz.net> <20110622035404.GA38834@nargothrond.kdm.org> <20110622041325.GA13754@vniz.net> <20110622200919.GA72504@nargothrond.kdm.org> <4E03FDFD.70203@FreeBSD.org> <20110624130826.GA71185@vniz.net>
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I forget to mention that the place is the same as trace shows: g_event_procbody-g_run_events-g_new_provider_event-g_dev_taste- g_dev_attrchanged-g_access-g_disk_access-cdopen-cam_periph_hold and it sleeps. On Fri, Jun 24, 2011 at 05:08:27PM +0400, Andrey Chernov wrote: > On Thu, Jun 23, 2011 at 11:01:17PM -0400, Justin T. Gibbs wrote: > > To test this theory, apply the following patch. I do not know if this > > is safe for changer devices, but I will review the changer code if this > > patch fixes ache's problem. > > I don't have changers. One of the plain ATA DVDs is read-only (cd0, which > is not detected now) and another one is read-write (cd1, detected). I try > the patch but nothing is changed in the picture. cd0 still not detected, > xpt_thrd sleep in ccb_scan and g_event sleep in caplck. Here is probe from > the old kernel which works, just in case, nothing unusual with it: > cd0 at ata2 bus 0 scbus2 target 0 lun 0 > cd0: <ASUS DVD-E616A 1.08> Removable CD-ROM SCSI-0 device > cd0: 100.000MB/s transfers (UDMA5, ATAPI 12bytes, PIO 65534bytes) > cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed Unplugging power from it allows to boot > normally. > Inserting media does not help too. > > > --- //depot/vendor/FreeBSD/head/sys/cam/scsi/scsi_cd.c 2011-05-07 10:06:43.000000000 -0600 > > +++ /home/justing/perforce/vendor/FreeBSD/head/sys/cam/scsi/scsi_cd.c 2011-05-07 10:06:43.000000000 -0600 > > @@ -687,6 +687,10 @@ > > else > > softc->minimum_command_size = 6; > > > > + /* > > + * Refcount and block open attempts until we are setup > > + * Can't block > > + */ > > (void)cam_periph_hold(periph, PRIBIO); > > cam_periph_unlock(periph); > > /* > > @@ -747,7 +751,6 @@ > > softc->disk->d_hba_subdevice = cpi.hba_subdevice; > > disk_create(softc->disk, DISK_VERSION); > > cam_periph_lock(periph); > > - cam_periph_unhold(periph); > > > > /* > > * Add an async callback so that we get > > @@ -972,12 +975,6 @@ > > > > cdregisterexit: > > > > - /* > > - * Refcount and block open attempts until we are setup > > - * Can't block > > - */ > > - (void)cam_periph_hold(periph, PRIBIO); > > - > > if ((softc->flags & CD_FLAG_CHANGER) == 0) > > xpt_schedule(periph, CAM_PRIORITY_DEV); > > else > > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > > > > -- > http://ache.vniz.net/ > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" -- http://ache.vniz.net/
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