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[Xen-devel] Diagnose stuff
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| Subject: | [Xen-devel] Diagnose stuff |
| From: | Juergen Gross <juergen.gross@xxxxxxxxxxxxxxxxxxx> |
| Date: | Wed, 25 Mar 2009 09:24:40 +0100 |
| Delivery-date: | Wed, 25 Mar 2009 01:25:07 -0700 |
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Hi, while implementing cpupool support in XEN I had to track down some issues with deadlocks. Is there any interest in patches for the following? - compile time switchable spinlock timeout detection - printout of state of ALL cpus to console in case of hypervisor crash - some enhancements in lock handling to reduce (potential) latency: Today in *lock_irq and *lock_irqsave interrupts are disabled and then spinning is started. If the lock is not obtained, enabling and disabling of IRQs in the spinloop would block IRQs as short as possible. Juergen -- Juergen Gross Principal Developer IP SW OS6 Telephone: +49 (0) 89 636 47950 Fujitsu Siemens Computers e-mail: juergen.gross@xxxxxxxxxxxxxxxxxxx Otto-Hahn-Ring 6 Internet: www.fujitsu-siemens.com D-81739 Muenchen Company details: www.fujitsu-siemens.com/imprint.html _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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