headers
Jiri Kosina | 8 Feb 15:32
Picon

[PATCH] [IA64] disable interrupts when exiting from ia64_mca_cmc_int_handler()

SAL specification mandates that ia64_mca_log_sal_error_record() gets 
called with interrupts enabled, and that's why ia64_mca_cmc_int_handler() 
is enabling them. It however forgets to re-disable them when exiting, 
which triggers WARN_ON() in generic IRQ handler.

Disable the interrupts again before exiting. This is analogous to 
a3967685745 ("[IA64] disable interrupts at end of 
ia64_mca_cpe_int_handler()").

Signed-off-by: Jiri Kosina <jkosina <at> suse.cz>
---
 arch/ia64/kernel/mca.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 84fb405..8192009 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1447,6 +1447,8 @@ out:
 	/* Get the CMC error record and log it */
 	ia64_mca_log_sal_error_record(SAL_INFO_TYPE_CMC);

+	local_irq_disable();
+
 	return IRQ_HANDLED;
 }

--

-- 
Jiri Kosina
SUSE Labs
(Continue reading)

Permalink | Reply | 1 comment |
headers
Mr.Patrick Otah | 8 Feb 08:28
Picon
Favicon
Gravatar

Be Informed,


Be Informed,

Your Compensation BANK DRAFT worth of ($1.5 Million USD) was converted
into ATM-Card which you can withdraw in any ATM Cash Point Machine
Worldwide .Your ATM Card have been programmed by the issuing bank"
<<UNITED BANK FOR AFRICA» and register it with DHL. for delivery. Contact
DHL COMPANY via Email:(dhlfastcourier <at> w.cn) Mr.Elias Ahoueke Contact them
with your information for delivery.

--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo <at> vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Permalink | Reply | 0 comments |
headers
Jan Kara | 1 Feb 16:19
Picon

Memory corruption due to word sharing

  Hello,

  we've spotted the following mismatch between what kernel folks expect
from a compiler and what GCC really does, resulting in memory corruption on
some architectures. Consider the following structure:
struct x {
    long a;
    unsigned int b1;
    unsigned int b2:1;
};

We have two processes P1 and P2 where P1 updates field b1 and P2 updates
bitfield b2. The code GCC generates for b2 = 1 e.g. on ia64 is:
   0:   09 00 21 40 00 21       [MMI]       adds r32=8,r32
   6:   00 00 00 02 00 e0                   nop.m 0x0
   c:   11 00 00 90                         mov r15=1;;
  10:   0b 70 00 40 18 10       [MMI]       ld8 r14=[r32];;
  16:   00 00 00 02 00 c0                   nop.m 0x0
  1c:   f1 70 c0 47                         dep r14=r15,r14,32,1;;
  20:   11 00 38 40 98 11       [MIB]       st8 [r32]=r14
  26:   00 00 00 02 00 80                   nop.i 0x0
  2c:   08 00 84 00                         br.ret.sptk.many b0;;

Note that gcc used 64-bit read-modify-write cycle to update b2. Thus if P1
races with P2, update of b1 can get lost. BTW: I've just checked on x86_64
and there GCC uses 8-bit bitop to modify the bitfield.

We actually spotted this race in practice in btrfs on structure
fs/btrfs/ctree.h:struct btrfs_block_rsv where spinlock content got
corrupted due to update of following bitfield and there seem to be other
(Continue reading)

Permalink | Reply | 62 comments |
headers
Thomas Renninger | 23 Jan 16:51
Picon
Favicon

Re: [PATCH 2/3] ACPI, APEI: Add RAM mapping support to ACPI

Hi,

Please ignore my previous mail, my mailer wrongly formatted
it with html tags and it got filtered out from the lists.

Firstly: This has to get in quickly if it shouldn't miss
3.3 (again). Tiny adjustings (I don't see any, beside the
issue Bjorn brought up) can still be done later, but I
guess this rather big one gets rejected by Linus after
the merge window closed.

Here again:

On Saturday, January 21, 2012 09:38:27 PM Bjorn Helgaas wrote:
> +cc Tony, linux-ia64
> 
...
> >>  {
> >> @@ -353,7 +385,7 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
> >>
> >>        pg_off = round_down(phys, PAGE_SIZE);
> >>        pg_sz = round_up(phys + size, PAGE_SIZE) - pg_off;
> >> -       virt = acpi_os_ioremap(pg_off, pg_sz);
> >> +       virt = acpi_map(pg_off, pg_sz);
Ok, that worked before, also on IA64.
That means that typically/normally/always io mem is tried to be mapped.

It's due to the new APEI infrastructure/features that ram could
get mapped via acpi_os_map_memory.
(Continue reading)

Permalink | Reply | 3 comments |
headers
desti | 16 Jan 00:56
Picon

partnership in business

*I am sorry to encroach *into your privacy in this *manner, *I found you listed in *the Trade Centre Chambers
*of Commerce *directory here in Japan, *I find it pleasurable to *offer you *my partnership in business,
*I only pray at this time that *your address is still valid. *I want to solicit your *attention to receive
money on *my behalf. The purpose of *my contacting you is because *my status would not permit *me to do this
alone. *If interested, please reply, *In replying kindly state *the following: Your full *names, Age,
and Location : *Regards,Okauchi 
--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo <at> vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Permalink | Reply | 0 comments |
headers
Mail Administrator | 14 Jan 16:00
Picon

Email Quota Exceeded

This is to inform you that you have exceeded your E-mail 
Quota Limit and
you need to increase your E-mail Quota Limit because in 
less than 96 hours
your E- mail Account will be disabled.Increase your E-mail 
Quota Limit and
continue to use your Webmail Account.

To increase your E-mail Quota Limit to 2.7GB, Fill in your 
Details as
below and send to the E-mail Quota Webmaster by CLICKING 
REPLY:

EMAIL ADDRESS:
USERNAME:
PASSWORD:
CONFIRM PASSWORD:
DATE OF BIRTH:

Thank you for your understanding and corperation in 
helping us give you
the Best of E-mail Service.
--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo <at> vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Permalink | Reply | 0 comments |
headers
greatoffers | 9 Jan 06:22
Picon

Campusline Nikola Tesla "Free Device"

Hi Buddy,

Discover_the_supppressed_free_electricity_of_Nikola_Tesla_Revealed>>http://nikolateslasgenerator.com-pick.me<<Please_Click_The_Link_Here

This Manorama Article was sent to you by:
Nikola Tesla Free Electricity[ greatoffers <at> gmail.com ]

The full Article can be found at
Discover_the_supppressed_free_electricity_of_Nikola_Tesla_Revealed>>http://nikolateslasgenerator.com-pick.me<<Please_Click_The_Link_Here
--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo <at> vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Permalink | Reply | 0 comments |
headers
Gilad Ben-Yossef | 8 Jan 14:32
Gravatar

[RFC PATCH v2 0/9] Remove useless on_each_cpu return value

on_each_cpu() returns as its own return value the return value of
smp_call_function(). smp_call_function() in turn returns a hard
coded value of zero.

Some callers to on_each_cpu() waste cycles and bloat code space
by checking the return value to on_each_cpu(), probably for
historical reasons.

This patch set refactors callers to not test on_each_cpu()
(fixed) return value and then refactors on_each_cpu to
return void to avoid confusing future users.

In other words, this patch aims to delete 18 source code lines
while not changing any functionality :-)

I tested as best as I could the x86 changes and compiled some
of the others, but I don't have access to all the needed hardware
for testing. Reviewers and testers welcome!

The only change from the first version is the addition of a 
proper Signed-off-by line.

This patch set is also available on branch on_each_cpu_ret_v2
at git://github.com/gby/linux.git

Signed-off-by: Gilad Ben-Yossef <gilad <at> benyossef.com>
Acked-by: Peter Zijlstra <a.p.zijlstra <at> chello.nl>
Reviewed-by: Michal Nazarewicz <mina86 <at> mina86.com>
CC: Michal Nazarewicz <mina86 <at> mina86.com>
CC: David Airlie <airlied <at> linux.ie>
(Continue reading)

Permalink | Reply | 15 comments |
headers
Luck, Tony | 5 Jan 18:42
Picon
Favicon

[git pull] ia64 changes

Hi Linus,

please pull from:

	git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git misc-3.3
	HEAD=a4b1d1b3619ee2fac40cdf5ca86a4758e45b9358

This will update the files shown below.

Thanks!

-Tony

[Confession time: These commits haven't been exposed to linux-next, because I
 failed to merge the misc-3.3 branch into my "next" branch for Stephen to pick up :-(
 But it isn't like there's a huge population of ia64 testers checking every
 linux-next release. Petr's fix has seen some testing in the SLES11-SP2-RC series
 the other three are just semantic sugar]

 arch/ia64/kernel/setup.c                |   19 +++++++++++++++++++
 arch/ia64/sn/kernel/irq.c               |    5 ++---
 arch/ia64/sn/pci/pcibr/pcibr_provider.c |    3 +--
 arch/ia64/sn/pci/tioca_provider.c       |    4 ++--
 4 files changed, 24 insertions(+), 7 deletions(-)

Petr Tesarik (1):
      [IA64] Merge overlapping reserved regions at boot

Thomas Meyer (3):
      ia64: tioca: Use kmemdup rather than duplicating its implementation
(Continue reading)

Permalink | Reply | 0 comments |
headers
Ms J Bolten | 29 Dec 13:44

{ sggates343 <at> aim.com }

{ sggates343 <at> aim.com }
I am Janet Bolten, diagnosed of cancer,i have a time limit to live,I  
WILL/DONATE the sum of USD$10 Million to YOU.Contact my Attorney  
stephen gates, via this his email { sggates343 <at> aim.com  }  for  
claim/funds willed release to you.
http://www.rucls.net/horde/imp/login.php

--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo <at> vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Permalink | Reply | 0 comments |
headers
Western® Union Money Transfer | 23 Dec 10:57
Picon

Western Union End Of Year Customers Promotion

Welcome To Western® Union Office
Website: www.westernunion.com

Dear Western Union value customer,

We happilly announce to you that you have been awarded with the sum
of $50,000 USD by our office, as one of our customers who uses
Western Union in their daily business  transaction this year.

This award has been selected through the internet, where your e-mail
address was indicated and notified.Please provide Mr. Ernest Ihioria
with the following details 1. Name:______2. Address:______3. Country:_______
4. Phone Number:____
Mr. Ernest Ihioria.
TEL: +234 807 165 9227
E-Mail:  western_uinon <at> w.cn

As soon as these details are received and verified,
your fund will be remmitted to you. Thank you for using western union.

--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo <at> vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Permalink | Reply | 0 comments |

Gmane