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  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:	Sun, 21 Apr 2013 20:22:27 +0200
From:	Borislav Petkov <>
To:	Jacob Shin <>
Subject: Re: [tip:perf/core] perf/x86/amd: Add support for AMD NB and L2I "
 uncore" counters

On Sun, Apr 21, 2013 at 01:06:27PM -0500, Jacob Shin wrote:
> From 2ac60428e58f7bfd7dec4baa772f523eeedfecc6 Mon Sep 17 00:00:00 2001
> From: Jacob Shin <>
> Date: Sun, 21 Apr 2013 12:58:21 -0500
> Subject: [PATCH 1/1] perf, amd: fix lockdep warning, don't __GFP_FS alloc
>  with IRQs disabled
> Fix lockdep warning by not calling kzalloc in smp_call_function_single.

This should say something about "do not allocate memory in the
IRQ handler or so." And I think the flag is __GFP_WAIT. Look at
allocate_slab() in slub.c:

        if (flags & __GFP_WAIT)

The local_irq_enable() calls into lockdep with trace_hardirqs_on().

Other than that:

Tested-by: Borislav Petkov <>



Sent from a fat crate under my desk. Formatting is fine.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists