On 08/29/2010 09:01 AM, caiqian at redhat.com wrote: > Further bisect indicated this bad commit from the merge. Given kdump > kernel was running with maxcpus=1, I guess this work caused fs/bio.c > hung in the workqueue on UP. Reverted the whole merge let kdump work > again. Can you please pull from the following git tree and see whether it fixes the problem? There was a bug in nr_active accounting. git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-linus Thanks. -- tejun
