Re: Lockup inside of stop_machine() during modprobe aes (was Re: Another AR5008 hang)

view
thread

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

From: Ben Gamari

Subject: Re: Lockup inside of stop_machine() during modprobe aes (was Re: Another AR5008 hang)

Date: Thursday, April 15, 2010 - 6:15 pm

On Thu, 15 Apr 2010 17:22:05 -0400, Andrew Morton <akpm@linux-foundation.org> wrote:
quoted text> On Tue, 06 Apr 2010 11:08:22 -0700 (PDT) Ben Gamari <bgamari.foss@gmail.com> wrote:
> > ...
> > In particular, it seems that the kernel is deadlocking inside of
> > stop_machine() while flushing workqueues.
> > ...
> 
> My guess would be that ieee80211 is calling crypto->request_module()
> under rtnl_lock, and the fact that rtnl_lock is held is causing
> modprobe->stop_machine to not complete.
> 
> > P.S. I am now quite certain that I was mistaken in saying that 2.6.33 was
> > affected. This seems to just be a 2.6.34 issue.
> 
> OK, thanks, I'll ask Rafael and Maciej to track this as a post-2.6.33
> regression, probably wireless.

Thanks!

- Ben

--
unsubscribe noticeTo unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:

Lockup inside of stop_machine() during modprobe aes (was R ..., Ben Gamari, (Tue Apr 6, 11:08 am)

Re: [REGRESSION] Lockup inside of stop_machine() during mo ..., Ben Gamari, (Sun Apr 11, 9:47 am)

Re: Lockup inside of stop_machine() during modprobe aes (w ..., Andrew Morton, (Thu Apr 15, 2:22 pm)

Re: Lockup inside of stop_machine() during modprobe aes (w ..., Ben Gamari, (Thu Apr 15, 6:15 pm)

Navigation

Popular discussions


linux-kernel:
Paul Turner	[tg_shares_up rewrite v4 11/11] sched: update tg->shares after cpu.shares write
Matthew Garrett	Re: [PATCH] Enable speedstep for sonoma processors.
Mauro Carvalho Chehab	Re: [PATCH 1/2] media: Add timberdale video-in driver
Peter Zijlstra	[PATCH 23/30] netvm: skb processing
Greg Kroah-Hartman	[PATCH 21/28] cgroupfs: create /sys/fs/cgroup to mount cgroupfs on
git:
Jan Hudec	Re: GIT push to sftp (feature request)
Steffen Prohaska	[PATCH 0/4] core.ignorecase
Johannes Schindelin	Re: Git checkout preserve timestamp?
Linus Torvalds	[PATCH 1/7] Make unpack_trees_options bit flags actual bitfields
Johan Herland	Re: What's cooking in git.git (Oct 2010, #01; Wed, 13)
linux-netdev:
David Miller	Re: [PATCH 1/3] f_phonet: dev_kfree_skb instead of dev_kfree_skb_any in TX callback
Richard Cochran	Re: [PATCH v3 3/3] ptp: Added a clock that uses the eTSEC found on the MPC85xx.
Jan Engelhardt	Re: [PATCH] Fix netfilter xt_time's time_mt()'s use of do_div()
Herbert Xu	Re: [RFC PATCH 00/17] virtual-bus
Jeff Kirsher	Re: [net-next-2.6 PATCH] e1000e: don't inadvertently re-set INTX_DISABLE
git-commits-head:
Linux Kernel Mailing List	ALSA: hda - Enable beep on Realtek codecs with PCI SSID override
Linux Kernel Mailing List	Use path_put() in a few places instead of {mnt,d}put()
Linux Kernel Mailing List	mv643xx_eth: use sw csum for big packets
Linux Kernel Mailing List	arm: fix HAVE_CLK merge goof
Linux Kernel Mailing List	arm: convert pcm037 platform to use smsc911x
freebsd-current:
David Wolfskill	"interrupt storm..."; seems associated with an0 NIC
Andriy Gapon	Re: letting glabel recognise a media change
Garrett Cooper	Re: Only display ACPI bootmenu key if ACPI is present
Pyun YongHyeon	CFT: msk(4) Rx checksum offloading support
FreeBSD Tinderbox	[head tinderbox] failure on sparc64/sparc64

Colocation donated by:

Syndicate