On Friday, 7 of March 2008, Bartlomiej Zolnierkiewicz wrote: > On Friday 07 March 2008, Borislav Petkov wrote: > > On Fri, Mar 07, 2008 at 09:39:43PM +0100, Bartlomiej Zolnierkiewicz wrote: > > > On Friday 07 March 2008, Borislav Petkov wrote: > > > > On Thu, Mar 06, 2008 at 10:35:00PM +0100, Bartlomiej Zolnierkiewicz wrote: > > > > > > > > > > On Thursday 06 March 2008, walt wrote: > > > > > > Hi Bartolmiej, > > > > > > > > > > > > For me, this commit causes the problem it's intended to fix: > > > > > > > > > > > > commit 9f10d9ee0ac6d79d7bc8b9a158bf4a29322d84d3 > > > > > > Author: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> > > > > > > Date: Tue Feb 26 21:50:35 2008 +0100 > > > > > > > > > > > > ide-cd: fix 'ireason' handling for REQ_TYPE_ATA_PC requests > > > > > > > > > > > > This fixes some hangs caused by not finishing the transfer before ending > > > > > > the request and also makes use of 'ireason == 1' quirk for spurious IRQs. > > > > > > > > > > > > When I mount a CD there is a long delay, and I see this error message: > > > > > > > > > > > > hdc: ide_cd_check_ireason: wrong transfer direction! > > > > > > cdrom: failed setting lba address space > > > > > > hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest } > > > > > > ide: failed opcode was: unknown > > > > > > hdc: drive not ready for command > > > > > > <repeated many times> > > > > > > > > > > > > When I revert this commit everything works properly again, including > > > > > > CD burning. > > > > > > > > > > > > Here is the drive info: > > > > > > > > > > > > hdc: TSSTcorpCD/DVDW SH-S182M, ATAPI CD/DVD-ROM drive > > > > > > hdc: host max PIO5 wanted PIO255(auto-tune) selected PIO4 > > > > > > hdc: UDMA/33 mode selected > > > > > > hdc: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache > > > > > > Uniform CD-ROM driver Revision: 3.20 > > > > > > hdc: UDMA/33 mode selected > > > > > > > > > > > > I'm happy to try patches or supply more info, just let me know > > > > > > what you need. > > > > > > > > > > Does the following patch help? > > > > > > > > > > [ Borislav, please take a look and double check that it is OK. ] > > > > > > > > > > From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> > > > > > Subject: [PATCH] ide-cd: mark REQ_TYPE_ATA_PC write requests with REQ_RW flag > > > > > > > > > > On Thursday 06 March 2008, walt wrote: > > > > > > > > > > > For me, this commit causes the problem it's intended to fix: > > > > > > > > > > > > commit 9f10d9ee0ac6d79d7bc8b9a158bf4a29322d84d3 > > > > > > Author: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> > > > > > > Date: Tue Feb 26 21:50:35 2008 +0100 > > > > > > > > > > > > ide-cd: fix 'ireason' handling for REQ_TYPE_ATA_PC requests > > > > > > > > > > > > This fixes some hangs caused by not finishing the transfer before ending > > > > > > the request and also makes use of 'ireason == 1' quirk for spurious IRQs. > > > > > > > > > > > > When I mount a CD there is a long delay, and I see this error message: > > > > > > > > > > > > hdc: ide_cd_check_ireason: wrong transfer direction! > > > > > > cdrom: failed setting lba address space > > > > > > hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest } > > > > > > ide: failed opcode was: unknown > > > > > > hdc: drive not ready for command > > > > > > <repeated many times> > > > > > > > > > > > > When I revert this commit everything works properly again, including > > > > > > CD burning. > > > > > > > > > > It turned out that REQ_TYPE_ATA_PC write requests were not marked as such > > > > > (the previous commit assumed them to be). > > > > > > > > > > Reported-by: walt <w41ter@xxxxxxxxx> > > > > > Cc: Borislav Petkov <petkovbb@xxxxxxxxxxxxxx> > > > > > Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> > > > > > --- > > > > > drivers/ide/ide-cd_ioctl.c | 4 ++++ > > > > > 1 file changed, 4 insertions(+) > > > > > > > > > > Index: b/drivers/ide/ide-cd_ioctl.c > > > > > =================================================================== > > > > > --- a/drivers/ide/ide-cd_ioctl.c > > > > > +++ b/drivers/ide/ide-cd_ioctl.c > > > > > @@ -457,6 +457,10 @@ int ide_cdrom_packet(struct cdrom_device > > > > > layer. the packet must be complete, as we do not > > > > > touch it at all. */ > > > > > ide_cd_init_rq(drive, &req); > > > > > + > > > > > + if (cgc->data_direction == CGC_DATA_WRITE) > > > > > + req.cmd_flags |= REQ_RW; > > > > > + > > > > > memcpy(req.cmd, cgc->cmd, CDROM_PACKET_SIZE); > > > > > if (cgc->sense) > > > > > memset(cgc->sense, 0, sizeof(struct request_sense)); > > > > > > > > Here's how i understand it (and correct me if i'm wrong): > > > > > > > > req.cmd_flags & 0x1 (i.e. the least sig. bit) was remaining unset for write requests > > > > and that's why the ireason check in the interrupt handler was failing loudly. > > > > This sets it correctly so that rq_data_dir(rq) evaluates to the correct data > > > > direction of the request, no? > > > > > > Yep. > > > > > > Thanks for checking it, I'll push the patch to Linus. > > > > Cool, can we close http://bugzilla.kernel.org/show_bug.cgi?id=10185 now? > > I suppose that Rafael would prefer to close it when patch hits the mainline. That's correct. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html