Re: [mainline] rcu stalls on CPU when unbinding mpt3sas driver

2017-12-15 Thread Hannes Reinecke
On 12/12/2017 11:38 AM, Abdul Haleem wrote: > Hi, > > Off late we are seeing cpu stalls messages while mpt3sas driver unbind > on powerpc machine for both mainline and linux-next kernels > > Machine Type: Power 8 Bare-metal > Kernel version: 4.15.0-rc2 > config: attached. > test: driver unbind >

[mainline] rcu stalls on CPU when unbinding mpt3sas driver

2017-12-12 Thread Abdul Haleem
Hi, Off late we are seeing cpu stalls messages while mpt3sas driver unbind on powerpc machine for both mainline and linux-next kernels Machine Type: Power 8 Bare-metal Kernel version: 4.15.0-rc2 config: attached. test: driver unbind $ echo -n 0001:03:00.0 > /sys/bus/pci/drivers/mpt3sas/unbind mp