linux-kernel - 2.6.23-rc7-mm1: r/o mounts joke with lockdep

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-next>] [day] [month] [year] [list]

Date:	Mon, 24 Sep 2007 13:51:05 +0400
From:	Alexey Dobriyan <adobriyan@...ru>
To:	akpm@...l.org
Cc:	linux-kernel@...r.kernel.org, haveblue@...ibm.com
Subject: 2.6.23-rc7-mm1: r/o mounts joke with lockdep

static void lock_and_coalesce_cpu_mnt_writer_counts(void)
{
	int cpu;
	struct mnt_writer *cpu_writer;

	for_each_possible_cpu(cpu) {
		cpu_writer = &per_cpu(mnt_writers, cpu);
		spin_lock_nested(&cpu_writer->lock, 42);
		                                   ^^^^

What the heck is going on? Given that MAX_LOCKDEP_SUBCLASSES is only 8,
this reliably turns off lockdep at boot.

-
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/