linux-kernel - x86_64 2.6.35.* kernels and Intel Xeon X5550

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:	Thu, 7 Oct 2010 11:17:43 -0600 (Mountain Daylight Time)
From:	Marc Aurele La France <tsi@...berta.ca>
To:	linux-kernel@...r.kernel.org
Subject: x86_64 2.6.35.* kernels and Intel Xeon X5550

Greetings.

I administer a cluster composed of a mixture of various Opteron models and 
Intel Xeon X5550's.  The 2.6.34.*, and prior, kernels run fine on all of 
them.  The 2.6.35 series also runs fine on the Opterons, but not on the 
Xeon's.  All of these are CONFIG_GENERIC_CPU kernels.

On the Xeon's, 2.6.35 hangs early on, upon the first test of trace events 
(in kernel/trace/trace_events.c:event_trace_self_tests()).  When disabling 
all tracing, debugging, etc., it still hangs but slightly later.  The 
megaraid_sas module is loaded, detects the adapter, but never gets around 
to registering it with the SCSI layer.

Core2-specific kernels also hang the same way, as do UP kernels.  I've 
tried backing out certain commits that seemed likely candidates, but have 
yet to stumble upon the one (or more) that is causing this.

Does anyone have any ideas?

Thanks.

Marc.

+----------------------------------+----------------------------------+
|  Marc Aurele La France           |  work:   1-780-492-9310          |
|  Academic Information and        |  fax:    1-780-492-1729          |
|    Communications Technologies   |  email:  tsi@...berta.ca         |
|  352 General Services Building   +----------------------------------+
|  University of Alberta           |                                  |
|  Edmonton, Alberta               |    Standard disclaimers apply    |
|  T6G 2H1                         |                                  |
|  CANADA                          |                                  |
+----------------------------------+----------------------------------+
--
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/