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Message-ID: <5a4c581d0807111425r72e39528w841e24a9b956c245@mail.gmail.com> Date: Fri, 11 Jul 2008 23:25:50 +0200 From: "Alessandro Suardi" <alessandro.suardi@...il.com> To: "Geert Uytterhoeven" <Geert.Uytterhoeven@...ycom.com> Cc: linux-scsi@...r.kernel.org, "Linux Kernel Development" <linux-kernel@...r.kernel.org>, "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>, "Maarten Bressers" <mbres@...too.org>, "Daniel Drake" <dsd@...too.org>, "Cell Broadband Engine OSS Development" <cbe-oss-dev@...abs.org> Subject: Re: [Cbe-oss-dev] [regression/bisected] corrupt CD data after media change and delay On Sun, Jun 22, 2008 at 3:14 PM, Alessandro Suardi <alessandro.suardi@...il.com> wrote: > On Sun, Jun 22, 2008 at 10:18 AM, Geert Uytterhoeven > <Geert.Uytterhoeven@...ycom.com> wrote: >> On Sat, 21 Jun 2008, Alessandro Suardi wrote: >>> On Wed, Jun 18, 2008 at 2:15 PM, Alessandro Suardi >>> <alessandro.suardi@...il.com> wrote: >>> > On Wed, Jun 18, 2008 at 1:13 PM, Geert Uytterhoeven >>> > <Geert.Uytterhoeven@...ycom.com> wrote: >>> >> On Wed, 18 Jun 2008, Alessandro Suardi wrote: >>> >>> On Fri, Jun 13, 2008 at 7:33 PM, Geert Uytterhoeven >>> >>> <Geert.Uytterhoeven@...ycom.com> wrote: >>> >>> > On Fri, 6 Jun 2008, Geert Uytterhoeven wrote: >>> >>> >> When mounting a CD/DVD more than 30 seconds after inserting it, and reading >>> >>> >> from it, we get: >>> >>> > >>> >>> > Apparently the fix didn't make it to all the CCed lists... >>> >>> > >>> >>> > http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fjejb%2Fscsi-rc-fixes-2.6.git;a=commitdiff_plain;h=d1daeabf0da5bfa1943272ce508e2ba785730bf0 >>> >>> >>> >>> Oh, that's in mainline ? I still have the problem of having to >>> >> >>> >> Not yet, it's in the scsi-rc-fixes-2.6 tree. >>> >> >>> >>> insert DVD / try accessing it and get errors / eject / re-insert >>> >>> and then it magically works... the messages have changed >>> >>> from what they were as reported here >>> >>> >>> >>> http://bugzilla.kernel.org/show_bug.cgi?id=10116 >>> >>> >>> >>> (see comments #8 and #9) to these ones, in 2.6.26-rc6-git4: >>> >>> >>> >>> Jun 17 22:38:43 sandman kernel: sr 1:0:0:0: [sr0] Result: >>> >>> hostbyte=0x00 driverbyte=0x08 >>> >>> Jun 17 22:38:43 sandman kernel: sr 1:0:0:0: [sr0] Sense Key : 0x3 [current] >>> >>> Jun 17 22:38:43 sandman kernel: sr 1:0:0:0: [sr0] ASC=0x11 ASCQ=0x0 >>> >>> Jun 17 22:38:43 sandman kernel: end_request: I/O error, dev sr0, sector 232 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 29 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 30 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 31 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 32 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 33 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 34 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 35 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 36 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 37 >>> >>> Jun 17 22:38:43 sandman kernel: Buffer I/O error on device sr0, logical block 38 >>> >>> >>> >>> here I eject and reinsert the disc, and: >>> >>> >>> >>> Jun 17 22:39:10 sandman kernel: UDF-fs: No VRS found >>> >>> >>> >>> lo and behold, no problem. >>> >>> >>> >>> This does not, alas, happen every time. It might be at the first >>> >>> DVD access after booting the laptop, but I haven't investigated >>> >>> in this detail yet. >>> >> >>> >> Does /sys/block/sr0/size reflect the correct size of the DVD? >>> >> >>> >> Did you try applying the patch? >>> > >>> > ATM I'm away from home (as usual), I'll post back when >>> > I have the info you asked for and tried applying the >>> > above patch. Thanks ! >>> >>> Sigh. I haven't been able to reproduce the problem once since >>> I posted this. Will keep trying... >> >> Perhaps because the fix is now in mainline? > > Eh, that may be a reason :) > > I'm indeed tracking mainline and haven't reproduced with > at least six different discs in -rc7. Just had the symptoms again in -rc9-git9 :( Relevant part of dmesg: <mount -r /cdrom, access file with gmplayer> SELinux: initialized (dev fuse, type fuse), uses genfs_contexts ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A SELinux: initialized (dev sr0, type iso9660), uses genfs_contexts attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 Buffer I/O error on device sr0, logical block 2110628 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 Buffer I/O error on device sr0, logical block 2110629 attempt to access beyond end of device sr0: rw=0, want=8442524, limit=2097151 Buffer I/O error on device sr0, logical block 2110630 attempt to access beyond end of device sr0: rw=0, want=8442528, limit=2097151 Buffer I/O error on device sr0, logical block 2110631 attempt to access beyond end of device sr0: rw=0, want=8442532, limit=2097151 Buffer I/O error on device sr0, logical block 2110632 attempt to access beyond end of device sr0: rw=0, want=8442536, limit=2097151 Buffer I/O error on device sr0, logical block 2110633 attempt to access beyond end of device sr0: rw=0, want=8442540, limit=2097151 Buffer I/O error on device sr0, logical block 2110634 attempt to access beyond end of device sr0: rw=0, want=8442544, limit=2097151 Buffer I/O error on device sr0, logical block 2110635 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 Buffer I/O error on device sr0, logical block 2110628 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 Buffer I/O error on device sr0, logical block 2110629 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442516, limit=2097151 attempt to access beyond end of device sr0: rw=0, want=8442520, limit=2097151 <here I eject, reinsert and remount the DVD> UDF-fs: No VRS found ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A SELinux: initialized (dev sr0, type iso9660), uses genfs_contexts <now works fine> Have to say that I didn't wait N seconds in the beginning, but just rather - plop cdrom in - close tray - mount -r /cdrom while disc is still spinning Unfortunately I only have this after eject/remount: [asuardi@...dman ~]$ cat /sys/block/sr0/size 9133120 Final note, as I said earlier in the thread, this is definitely an occurrence of first device access after boot - as I just rebooted: [asuardi@...dman ~]$ uptime 23:25:28 up 17 min, 6 users, load average: 0.09, 0.18, 0.15 [asuardi@...dman ~]$ uname -a Linux sandman 2.6.26-rc9-git9 #7 Fri Jul 11 21:59:15 CEST 2008 i686 i686 i386 GNU/Linux Thanks, --alessandro "Give me love / Or give me hate Give me anything that's not just ok" (Sophia, 'Weightless') -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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