https://bugzilla.kernel.org/show_bug.cgi?id=71231
Bug ID: 71231
Summary: System unresponsable after a lot of LUNs have been
added to the system
Product: IO/Storage
Version: 2.5
Kernel Version: 3.10.32
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: SCSI
Assignee: linux-scsi@vger.kernel.org
Reporter: alexandernaum...@gmx.de
Regression: No
Created attachment 127581
--> https://bugzilla.kernel.org/attachment.cgi?id=127581&action=edit
Kernel config
This Kernel crash is reproducable on my system.
Right now I could get it with 3.10.25 and 3.10.32.
I works fine with 3.1.
The system (Dell R910, nut it also happens with other servers) has a QLogic
FC-HBA (qla2xxx driver).
After connection about 30 LUNs the system is working fine, but if I increase
the amount of FC-LUNs to for example 40 the system hangs afetr some seconds.
Maybe this bug has been already fixed by Suse:
http://kernel.suse.com/cgit/kernel-source/tree/patches.fixes/mm-resched-to-avoid-rcu-stall-during-boot-large-machines.patch?h=SLE11-SP3&id=6780159bba20e9f99dd5ac8a4e18f98f9c93adf7
If it is the case I think this patch should be put into current kernel lines.
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