From 4cf0410ad1c223d3d70e686fe913a0ab82c8bc03 Mon Sep 17 00:00:00 2001 From: asomers Date: Tue, 14 Apr 2015 16:33:33 +0000 Subject: [PATCH] Initialize async_arg_ptr in xpt_async when called with async_code AC_ADVINFO_CHANGED. Without this change, newly inserted hard disks won't always have their physical path device nodes created. The problem reproduces most readily when attaching a large number of disks at once. Differential Revision: https://reviews.freebsd.org/D2290 Reviewed by: mav, imp MFC after: 2 weeks Sponsored by: Spectra Logic --- sys/cam/cam_xpt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sys/cam/cam_xpt.c b/sys/cam/cam_xpt.c index 06e01fcf58f5..ad55373c25a6 100644 --- a/sys/cam/cam_xpt.c +++ b/sys/cam/cam_xpt.c @@ -4264,8 +4264,10 @@ xpt_async(u_int32_t async_code, struct cam_path *path, void *async_arg) } memcpy(ccb->casync.async_arg_ptr, async_arg, size); ccb->casync.async_arg_size = size; - } else if (size < 0) + } else if (size < 0) { + ccb->casync.async_arg_ptr = async_arg; ccb->casync.async_arg_size = size; + } if (path->device != NULL && path->device->lun_id != CAM_LUN_WILDCARD) xpt_freeze_devq(path, 1); else