linux-kernel - Re: Weird hard disk noise on shutdown (bug #7674)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 22 Feb 2007 13:53:06 +0000
From:	Alan <alan@...rguk.ukuu.org.uk>
To:	"Francesco Pretto" <ceztko@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Weird hard disk noise on shutdown (bug #7674)

> However, i'm not still sure i enabled as much debugging info as i
> could in the kernel configuration. If you need more, please point me
> to precise configuration options.

You grabbed a lot of junk but you did grab this line

[17179682.560000] Synchronizing SCSI cache for disk sda: 

Which means sd_sync_cache got called and flushed the data to disk.

I don't think you can do the other needed debugging without a recompile.

The following will generate a vast amount of debug of which only the end
matters. You may well want to build a kernel this way, boot it with
init=/bin/sh and then at the shell prompt do "halt -f" so you don't get
too much debug

In include/linux/libata.h change

#undef ATA_DEBUG                /* debugging output */
#undef ATA_VERBOSE_DEBUG        /* yet more debugging output */

so both of the undef-s read define

#define ATA_DEBUG
#define ATA_VERBOSE_DEBUG

and recompile


-
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/