Bug#556635: udev: blanks inserted RW media
This appears to be fixed in git now: http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=160b069c25690bfb0c785994c7c3710289179107 -- Colin Watson [cjwat...@debian.org] -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#556635: udev: blanks inserted RW media
Marco d'Itri wrote: On Nov 17, Ji??í Pale??ek jpale...@web.de wrote: Try to reproduce the issue in single user mode for a start. I did, and it is reproducible. Try to reproduce the issue after booting with init=/bin/bash and running ata_id from the command line with no udevd process running. Hi, so git diff 146..147 -- extras/ata_id/ata_id.c lists quite a lot of changes and the log reads $ git log 146..147 -- extras/ata_id/ata_id.c commit 66094a4a7fc1d303e80785d586800eae9841502b Author: David Zeuthen zeut...@gmail.com Date: Wed Nov 4 16:34:22 2009 +0100 ata_id: export more advanced ATA features I'm only guessing here, but maybe it is related to ide-cd. David Zeuthen is a Redhat/Fedora guy, and they switched to libata only quite some time ago, so I assume he didn't test this code with the (legacy) ide-cd subsystem. Can everyone who encouters this bug confirm, that this only happens with ide-cd (i.e. is your cdrom device named /dev/hd*)? Cheers, Michael signature.asc Description: OpenPGP digital signature
Bug#556635: udev: blanks inserted RW media
On Thu, 19 Nov 2009 17:37:39 +0100, Michael Biebl bi...@debian.org wrote: Marco d'Itri wrote: On Nov 17, Ji??í Pale??ek jpale...@web.de wrote: Try to reproduce the issue in single user mode for a start. I did, and it is reproducible. Try to reproduce the issue after booting with init=/bin/bash and running ata_id from the command line with no udevd process running. Hi, so git diff 146..147 -- extras/ata_id/ata_id.c lists quite a lot of changes and the log reads $ git log 146..147 -- extras/ata_id/ata_id.c commit 66094a4a7fc1d303e80785d586800eae9841502b Author: David Zeuthen zeut...@gmail.com Date: Wed Nov 4 16:34:22 2009 +0100 ata_id: export more advanced ATA features I'm only guessing here, but maybe it is related to ide-cd. David Zeuthen is a Redhat/Fedora guy, and they switched to libata only quite some time ago, so I assume he didn't test this code with the (legacy) ide-cd subsystem. Can everyone who encouters this bug confirm, that this only happens with ide-cd (i.e. is your cdrom device named /dev/hd*)? For me at least, it works that way. I tried reproducing with Asus EEE's external DVD writer (USB, /dev/sg0), and it didn't blank the media. It didn't work though, because it didn't write any info about the drive (just sad something about call not supported). An interresting info, quoting from the manpage http://linux.die.net/man/8/sg_sat_identify: The SCSI ATA PASS-THROUGH (12) command's opcode is 0xa1 and it clashes with the MMC set's BLANK command used by cd/dvd writers. So a SATL in front of an ATAPI device that uses MMC (i.e. has peripheral device type 5) probably should treat opcode 0xa1 as a BLANK command and send it through to the cd/dvd drive. The ATA PASS-THROUGH (16) command's opcode (0x85) does not clash with anything so it is a better choice. Note that ata_id uses the 0xA1 command. However, this is what I get when running sg_sat_identify: debian:/usr/share/man# sg_sat_identify -v /dev/cdrom ATA pass through (16) cdb: 85 08 0e 00 00 00 01 00 00 00 00 00 00 00 ec 00 ATA PASS-THROUGH (16) not supported Regards Jiri Palecek -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#556635: udev: blanks inserted RW media
On Wed, 18 Nov 2009 16:36:21 +0100, Marco d'Itri m...@linux.it wrote: On Nov 17, Ji??í Pale??ek jpale...@web.de wrote: Try to reproduce the issue in single user mode for a start. I did, and it is reproducible. Try to reproduce the issue after booting with init=/bin/bash and running ata_id from the command line with no udevd process running. I just did that, with a Lenny live USB from the Debian Live project. It did blank the DVD. Jiri Palecek -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#556635: udev: blanks inserted RW media
I can confirm this bug, udev 147 erases/blanks my RW media completely aswell. Tested with 147-2 and 147-4. 146-5 does not erase. -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#556635: udev: blanks inserted RW media
On Nov 18, Christoph Stritt phoe...@jobob.com wrote: I can confirm this bug, udev 147 erases/blanks my RW media completely aswell. Tested with 147-2 and 147-4. I do not even own a CDRW so I cannot test this, but it's weird that the media is blanked when the device is opened *read only*. I have no idea about how this API works so I do not know if udev or the kernel should be blamed. -- ciao, Marco signature.asc Description: Digital signature
Bug#556635: udev: blanks inserted RW media
On Nov 17, Ji??í Pale??ek jpale...@web.de wrote: Try to reproduce the issue in single user mode for a start. I did, and it is reproducible. Try to reproduce the issue after booting with init=/bin/bash and running ata_id from the command line with no udevd process running. Note that bugs causing data loss are grave per http://www.debian.org/Bugs/Developer#severities, and you haven't asked for any more info - so why have you tagged it as moreinfo? I hope you don't close your eyes when opposing to bugs regularly. Only weird unreproducible ones. -- ciao, Marco signature.asc Description: Digital signature
Bug#556635: udev: blanks inserted RW media
Package: udev Version: 147-4 Severity: grave Justification: data loss Hello, I've found that udev erases my live images burned on CD-RW media, making them unbootable. When I investigated further, I've found that, after unpacking udev 147 to a temporary directory, running ata_id --export /dev/hdc indeed erases the disc in the drive. (see the attachment for a strace of this execution) This has been verified on two kernels (customized 2.6.27 and distribution 2.6.30) and two drives. I'm not sure where is the problem, though. It might be a problem in the kernel as well. Regards Jiri Palecek -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ trace Description: Binary data
Bug#556635: udev: blanks inserted RW media
severity 556635 important tag 556635 unreproducible moreinfo thanks On Nov 17, Ji??í Pale??ek jpale...@web.de wrote: I've found that udev erases my live images burned on CD-RW media, making them unbootable. When I investigated further, I've found that, after unpacking udev 147 to a temporary directory, running ata_id --export /dev/hdc indeed erases the disc in the drive. (see the attachment for a strace of this execution) I just do not believe this. Look for other processes which may do this. Try to reproduce the issue in single user mode for a start. -- ciao, Marco signature.asc Description: Digital signature
Processed: Re: Bug#556635: udev: blanks inserted RW media
Processing commands for cont...@bugs.debian.org: severity 556635 important Bug #556635 [udev] udev: blanks inserted RW media Severity set to 'important' from 'grave' tag 556635 unreproducible moreinfo Bug #556635 [udev] udev: blanks inserted RW media Added tag(s) unreproducible and moreinfo. thanks Stopping processing here. Please contact me if you need assistance. Debian bug tracking system administrator (administrator, Debian Bugs database) -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Processed: Re: Bug#556635: udev: blanks inserted RW media
Processing commands for cont...@bugs.debian.org: severity 556635 grave Bug #556635 [udev] udev: blanks inserted RW media Severity set to 'grave' from 'important' tags 556635 -moreinfo Bug #556635 [udev] udev: blanks inserted RW media Removed tag(s) moreinfo. thanks Stopping processing here. Please contact me if you need assistance. Debian bug tracking system administrator (administrator, Debian Bugs database) -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
