On Thu, Jun 06, 2019 at 03:26:29PM +0100, Andrew Cooper wrote: > UBSAN reports: > > (XEN) > ================================================================================ > (XEN) UBSAN: Undefined behaviour in irq.c:682:22 > (XEN) left shift of 1 by 31 places cannot be represented in type 'int' > (XEN) ----[ Xen-4.13-unstable x86_64 debug=y Not tainted ]---- > (XEN) CPU: 16 > (XEN) RIP: e008:[<ffff82d0802a54ce>] ubsan.c#ubsan_epilogue+0xa/0xc2 > <snip> > (XEN) Xen call trace: > (XEN) [<ffff82d0802a54ce>] ubsan.c#ubsan_epilogue+0xa/0xc2 > (XEN) [<ffff82d0802a6009>] __ubsan_handle_shift_out_of_bounds+0x15d/0x16c > (XEN) [<ffff82d08031ae77>] irq_move_cleanup_interrupt+0x25c/0x4a0 > (XEN) [<ffff82d08031b585>] do_IRQ+0x19d/0x104c > (XEN) [<ffff82d08050c8ba>] common_interrupt+0x10a/0x120 > (XEN) [<ffff82d0803b13a6>] cpu_idle.c#acpi_idle_do_entry+0x1de/0x24b > (XEN) [<ffff82d0803b1d83>] cpu_idle.c#acpi_processor_idle+0x5c8/0x94e > (XEN) [<ffff82d0802fa8d6>] domain.c#idle_loop+0xee/0x101 > (XEN) > (XEN) > ================================================================================ > > Switch to an unsigned shift, and correct the surrounding style. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Reviewed-by: Roger Pau Monné <roger....@citrix.com> Thanks. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
