Date: Mon, 7 Jul 2025 04:43:04 -0700 From: David Wolfskill <david@catwhisker.org> To: current@freebsd.org Subject: Something seems a bit odd with pipes after main-n278435-945ba658d803 Message-ID: <aGuyyKElaYvEcs7u@albert.catwhisker.org>
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[-- Attachment #1 --] As "problems" go, this is quite mild -- but it seems rather unexpected, and thus may be an idicator of something not quite going as intended. I am "tracking" head daily; up to main-n278435-945ba658d803 (built Friday, 04 July), pipe behavior seemed ... normal. Yesterday (Sunday, 06 July), running main-n278483-476d2d8f290f, I noticed that running a "tail -F | grep ..." on the build typescript no longer showed "interesting" excerpts of the build... until the build was done (and script had closed the typescript file). Or ... if (from a different terminal/window/...) I run the same "grep" command directly against the typescript file (vs. the "tail -F" pipeline), the earlier one (using "tail -F") "wakes up" & displays the extracted lines up to that point. If there is more to be displayed, it won't be -- unless I re-run a command that reads the file or script closes it. (Running "grep" is not necessary -- I just tried merely running "cat" against it; that also worked to "wake up" the "tail -F" pipeline.) This morning, running main-n278488-afd5bc630930, that behavior (from yesterday) persists. (I wanted to see if the issue persisted before whining about it.) The same hardware running stable/14 behaves as have systems I have run since a couple of decades ago (in that respect). The systems on which I have observed this are each amd64, using files on UFS. Additional information (build logs; dmesg; &c.) is available at https://www.catwhisker.org/~david/FreeBSD/history/ Peace, david -- David H. Wolfskill david@catwhisker.org "The whole idea of reciprocal tariffs is if someone's punching me in the face, I'm going to punch myself in the face." -- Warwick McKibbin See https://www.catwhisker.org/~david/publickey.gpg for my public key. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iNUEARYKAH0WIQSTLzOSbomIK53fjFliipiWhXYx5QUCaGuyyF8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0OTMy RjMzOTI2RTg5ODgyQjlEREY4QzU5NjI4QTk4OTY4NTc2MzFFNQAKCRBiipiWhXYx 5SP1AQC9tShJ1OYY4kh1BXjsx5QBJS5LeSAeoimF4L2MzVe2UwEA2eUPgXLpcFdV 8hVqd5kk9H4kX94FrosHiel7zlZi9ww= =icuA -----END PGP SIGNATURE-----home | help
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