oops! sorry for not noticing this.
-Manjunath
On 11/8/2018 10:16 PM, Juergen Gross wrote:
On 09/11/2018 02:10, Manjunath Patil wrote:
When we try to detach the device, blkfront_remove() tries to access blkfront_info leading to kernel panic.
Typical call stack involving panic - #10 page_fault at ffffffff816f25df [exception RIP: blkif_free+46] #11 blkfront_remove at ffffffffa004de47 [xen_blkfront] #12 xenbus_dev_remove at ffffffff813faa4c #13 __device_release_driver at ffffffff814769aa #14 device_release_driver at ffffffff81476a63 #15 bus_remove_device at ffffffff814762eb #16 device_del at ffffffff81472684 #17 device_unregister at ffffffff814727e2 #18 xenbus_dev_changed at ffffffff813fa89f #19 frontend_changed at ffffffff813fca19 #20 xenwatch_thread at ffffffff813f88f9 #21 kthread at ffffffff810a486b #22 ret_from_fork at ffffffff816ed2a8
Cc: stable@vger.kernel.org Signed-off-by: Manjunath Patil manjunath.b.patil@oracle.com
Commit f92898e7f32e3 already added that.
Juergen