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Red Hat Bugzilla – Attachment 147079 Details for
Bug 225203
Reading /sys/hypervisor/uuid in Dom0 hangs if XenStoreD isn't running
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[patch]
Crude but simple patch to avoid the hang
sys-hypervisor-uuid-hang.patch (text/plain), 429 bytes, created by
Markus Armbruster
on 2007-02-01 09:20:12 UTC
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Description:
Crude but simple patch to avoid the hang
Filename:
MIME Type:
Creator:
Markus Armbruster
Created:
2007-02-01 09:20:12 UTC
Size:
429 bytes
patch
obsolete
>diff -r 3993dc2992e9 drivers/xen/core/xen_sysfs.c >--- a/drivers/xen/core/xen_sysfs.c Tue Oct 17 22:32:22 2006 +0200 >+++ b/drivers/xen/core/xen_sysfs.c Thu Feb 01 09:40:44 2007 +0100 >@@ -104,6 +104,10 @@ static ssize_t uuid_show(struct hyp_sysf > { > char *vm, *val; > int ret; >+ >+ extern int xenstored_ready; >+ if (unlikely(!xenstored_ready)) >+ return -EAGAIN; > > vm = xenbus_read(XBT_NIL, "vm", "", NULL); > if (IS_ERR(vm))
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