Date: Sun, 31 May 1998 04:50:00 -0700 (PDT) From: Hans Huebner <hans@huebner.org> To: freebsd-bugs@FreeBSD.ORG Subject: Re: bin/6799: problem with open(2) in libc_r and opening tape device Message-ID: <199805311150.EAA10214@freefall.freebsd.org>
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The following reply was made to PR bin/6799; it has been noted by GNATS. From: Hans Huebner <hans@huebner.org> To: freebsd-gnats-submit@freebsd.org, ian@nmsu.edu Cc: Subject: Re: bin/6799: problem with open(2) in libc_r and opening tape device Date: Sun, 31 May 1998 13:47:20 +0200 Apparently, the observed behaviour is a result of libc_r's attempt to switch the file descriptor to the tape device into asynchronous mode. As of now, neither the old nor the CAM SCSI subsystem support that. This holds true for any SCSI device, not only tapes, which renders FreeBSD's SCSI subsystem inaccessible to multithreaded applications. This requires substantial work to make it properly work, and it is unclear whether this would be warranted for the old SCSI subsystem (iff CAM makes it into 3.0). -Hans -- Hans@Huebner.ORG +49-177-512 1024 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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