Date: Tue, 14 Apr 2015 16:33:34 +0000 (UTC) From: Alan Somers <asomers@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r281531 - head/sys/cam Message-ID: <201504141633.t3EGXYx6070174@svn.freebsd.org>
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Author: asomers Date: Tue Apr 14 16:33:33 2015 New Revision: 281531 URL: https://svnweb.freebsd.org/changeset/base/281531 Log: 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 Modified: head/sys/cam/cam_xpt.c Modified: head/sys/cam/cam_xpt.c ============================================================================== --- head/sys/cam/cam_xpt.c Tue Apr 14 15:21:20 2015 (r281530) +++ head/sys/cam/cam_xpt.c Tue Apr 14 16:33:33 2015 (r281531) @@ -4264,8 +4264,10 @@ xpt_async(u_int32_t async_code, struct c } 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
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