Package: emacs;
Reported by: Paul Eggert <eggert <at> cs.ucla.edu>
Date: Wed, 16 Jul 2025 06:51:01 UTC
Severity: normal
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bug-gnu-emacs <at> gnu.org:bug#79030; Package emacs.
(Wed, 16 Jul 2025 06:51:01 GMT) Full text and rfc822 format available.Paul Eggert <eggert <at> cs.ucla.edu>:bug-gnu-emacs <at> gnu.org.
(Wed, 16 Jul 2025 06:51:01 GMT) Full text and rfc822 format available.Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Paul Eggert <eggert <at> cs.ucla.edu> To: Emacs bug reports and feature requests <bug-gnu-emacs <at> gnu.org> Subject: rare failure of esh-cmd-test/reset-in-pipeline/subcommand Date: Tue, 15 Jul 2025 23:50:13 -0700
On the master branch, on Ubuntu 25.04 x86-64, I ran "make -j12 check"
about 130 times in sequence, and eventually got a failure in
esh-cmd-test/reset-in-pipeline/subcommand. The problem is most likely
timing related. The rest of this email is a copy of the failed
esh-cmd-tests.log.
Running 77 tests (2025-07-15 18:19:45-0700, selector ‘(not (or (tag
:expensive-test) (tag :unstable) (tag :nativecomp)))’)
passed 1/77 esh-cmd-test/and-operator (0.221212 sec)
passed 2/77 esh-cmd-test/and-operator/output (0.205419 sec)
[sleep]+ Done (/usr/bin/sleep 10)
passed 3/77 esh-cmd-test/background/kill (0.101571 sec)
[echo]+ Done (/usr/bin/echo hi)
passed 4/77 esh-cmd-test/background/simple-command (0.102426 sec)
[echo]+ Done (/usr/bin/echo hello)
[rev]+ Done (/usr/bin/rev)
passed 5/77 esh-cmd-test/background/subcommand (0.102975 sec)
passed 6/77 esh-cmd-test/backquoted-lisp-form (0.000991 sec)
passed 7/77 esh-cmd-test/backquoted-lisp-form/splice (0.000762 sec)
passed 8/77 esh-cmd-test/command-not-found/pipeline (0.102448 sec)
passed 9/77 esh-cmd-test/empty-background-command (0.000850 sec)
passed 10/77 esh-cmd-test/for-loop (0.001163 sec)
passed 11/77 esh-cmd-test/for-loop-lisp-body (0.000946 sec)
passed 12/77 esh-cmd-test/for-loop-list (0.012570 sec)
passed 13/77 esh-cmd-test/for-loop-mixed-args (0.001573 sec)
passed 14/77 esh-cmd-test/for-loop-name (0.000959 sec)
passed 15/77 esh-cmd-test/for-loop-name-shadow (0.001693 sec)
passed 16/77 esh-cmd-test/for-loop-pipe (0.102910 sec)
passed 17/77 esh-cmd-test/for-loop-range (0.002508 sec)
passed 18/77 esh-cmd-test/for-loop-string (0.000966 sec)
passed 19/77 esh-cmd-test/for-loop-vector (0.000988 sec)
passed 20/77 esh-cmd-test/if-else-statement (0.002046 sec)
passed 21/77 esh-cmd-test/if-else-statement-chain (0.001977 sec)
passed 22/77 esh-cmd-test/if-else-statement-ext-cmd (0.103959 sec)
passed 23/77 esh-cmd-test/if-else-statement-lisp-body (0.001634 sec)
passed 24/77 esh-cmd-test/if-else-statement-lisp-form (0.002191 sec)
passed 25/77 esh-cmd-test/if-else-statement-lisp-form-2 (0.002140 sec)
passed 26/77 esh-cmd-test/if-else-statement-pipe (0.204174 sec)
passed 27/77 esh-cmd-test/if-statement (0.003827 sec)
passed 28/77 esh-cmd-test/if-statement-pipe (0.204486 sec)
passed 29/77 esh-cmd-test/invoke-directly/complex (0.000759 sec)
passed 30/77 esh-cmd-test/invoke-directly/complex-subcmd (0.000773
sec)
passed 31/77 esh-cmd-test/invoke-directly/multiple-cmds (0.000654 sec)
passed 32/77 esh-cmd-test/invoke-directly/no-args (0.000678 sec)
passed 33/77 esh-cmd-test/invoke-directly/subcmd (0.000857 sec)
passed 34/77 esh-cmd-test/invoke-directly/with-args (0.000647 sec)
passed 35/77 esh-cmd-test/let-rebinds-after-defer (0.103729 sec)
passed 36/77 esh-cmd-test/lisp-command (0.000588 sec)
passed 37/77 esh-cmd-test/lisp-command-args (0.000541 sec)
passed 38/77 esh-cmd-test/lisp-command-with-quote (0.000449 sec)
passed 39/77 esh-cmd-test/or-operator (0.205100 sec)
passed 40/77 esh-cmd-test/or-operator/output (0.206857 sec)
passed 41/77 esh-cmd-test/pipeline-wait/head-proc (0.102134 sec)
passed 42/77 esh-cmd-test/pipeline-wait/multi-proc (1.106663 sec)
passed 43/77 esh-cmd-test/pipeline-wait/nested-pipes (1.108869 sec)
passed 44/77 esh-cmd-test/pipeline-wait/subcommand (0.103447 sec)
passed 45/77 esh-cmd-test/pipeline-wait/subcommand-with-pipe
(0.119194 sec)
passed 46/77 esh-cmd-test/pipeline-wait/tail-proc (0.102325 sec)
passed 47/77 esh-cmd-test/pipeline/replace-command (0.002533 sec)
passed 48/77 esh-cmd-test/quoted-lisp-form (0.000730 sec)
passed 49/77 esh-cmd-test/reset-in-pipeline/lisp (0.103057 sec)
Test esh-cmd-test/reset-in-pipeline/subcommand backtrace:
signal(ert-test-failed (((should (eshell-command-result--equal comma
ert-fail(((should (eshell-command-result--equal command (eshell-test
(if (unwind-protect (setq value-7 (apply fn-5 args-6)) (setq form-de
(let (form-description-9) (if (unwind-protect (setq value-7 (apply f
(let ((value-7 'ert-form-evaluation-aborted-8)) (let (form-descripti
(let* ((fn-5 #'eshell-command-result--equal) (args-6 (condition-case
(let ((eshell-module-loading-messages nil)) (let* ((fn-5 #'eshell-co
(let ((ert--infos (cons (cons "Command logs: " #'eshell-get-debug-lo
eshell-command-result-equal("*cat $<echo | echo $eshell-in-pipeline-
#f(compiled-function () #<bytecode -0x19894490097a61f1>)()
#f(compiled-function () #<bytecode -0x1ef738f5a9e10056>)()
handler-bind-1(#f(compiled-function () #<bytecode -0x1ef738f5a9e1005
ert--run-test-internal(#s(ert--test-execution-info :test #s(ert-test
ert-run-test(#s(ert-test :name esh-cmd-test/reset-in-pipeline/subcom
ert-run-or-rerun-test(#s(ert--stats :selector ... :tests ... :test-m
ert-run-tests((not (or (tag :expensive-test) (tag :unstable) (tag :n
ert-run-tests-batch((not (or (tag :expensive-test) (tag :unstable) (
ert-run-tests-batch-and-exit((not (or (tag :expensive-test) (tag :un
eval((ert-run-tests-batch-and-exit '(not (or (tag :expensive-test) (
command-line-1(("-L" ":." "-l" "ert" "--eval" "(setq treesit-extra-l
command-line()
normal-top-level()
Test esh-cmd-test/reset-in-pipeline/subcommand condition:
Command logs: command: "*cat $<echo | echo $eshell-in-pipeline-p |
echo> | *cat"
----------------------------------------
[process] started external process ‘cat’
/usr/bin/cat
----------------------------------------
[process] started external process ‘cat<1>’
/usr/bin/cat /tmp/rEfiLP
----------------------------------------
[process] received output from process ‘cat<1>’
t
----------------------------------------
[process] forwarding output from process ‘cat<1>’
t
----------------------------------------
[process] received output from process ‘cat’
t
----------------------------------------
[process] forwarding output from process ‘cat’
t
----------------------------------------
[process] sentinel for external process ‘cat<1>’:
"finished
"
----------------------------------------
[process] i/o busy for process ‘cat<1>’
----------------------------------------
[process] sentinel for external process ‘cat-stderr’:
"finished
"
----------------------------------------
[process] finished external process ‘cat-stderr’
----------------------------------------
[process] finished external process ‘cat<1>’
----------------------------------------
[process] sentinel for external process ‘cat’: "finished
"
----------------------------------------
[process] finished external process ‘cat’
(ert-test-failed
((should
(eshell-command-result--equal command
(eshell-test-command-result command)
result))
:form
(eshell-command-result--equal
"*cat $<echo | echo $eshell-in-pipeline-p | echo> | *cat" "t\n" "t")
:value nil :explanation
(nonequal-result
(command "*cat $<echo | echo $eshell-in-pipeline-p | echo> | *cat")
(result "t\n") (expected "t"))))
FAILED 50/77 esh-cmd-test/reset-in-pipeline/subcommand (0.641031
sec) at lisp/eshell/esh-cmd-tests.el:273
passed 51/77 esh-cmd-test/simple-command-result (0.001157 sec)
passed 52/77 esh-cmd-test/skip-leading-nils (0.001570 sec)
passed 53/77 esh-cmd-test/subcommand (0.001292 sec)
passed 54/77 esh-cmd-test/subcommand-args (0.001372 sec)
passed 55/77 esh-cmd-test/subcommand-lisp (0.000725 sec)
passed 56/77 esh-cmd-test/subcommand-shadow-value (0.001680 sec)
passed 57/77 esh-cmd-test/throw (0.001959 sec)
passed 58/77 esh-cmd-test/unless-else-statement (0.002314 sec)
passed 59/77 esh-cmd-test/unless-else-statement-ext-cmd (0.108885 sec)
passed 60/77 esh-cmd-test/unless-else-statement-lisp-form
(0.003231 sec)
passed 61/77 esh-cmd-test/unless-statement (0.001704 sec)
passed 62/77 esh-cmd-test/until-loop (0.001488 sec)
passed 63/77 esh-cmd-test/until-loop-ext-cmd (0.103259 sec)
passed 64/77 esh-cmd-test/until-loop-lisp-form (0.002376 sec)
passed 65/77 esh-cmd-test/which/alias (0.001724 sec)
passed 66/77 esh-cmd-test/which/explicit (0.001203 sec)
passed 67/77 esh-cmd-test/which/explicit/not-found (0.001120 sec)
passed 68/77 esh-cmd-test/which/plain/eshell-builtin (0.001701 sec)
passed 69/77 esh-cmd-test/which/plain/external-program (0.001325 sec)
passed 70/77 esh-cmd-test/which/plain/not-found (0.001281 sec)
passed 71/77 esh-cmd-test/which/quoted-file (0.000875 sec)
passed 72/77 esh-cmd-test/which/quoted-file/not-found (0.000852 sec)
passed 73/77 esh-cmd-test/while-loop (0.018836 sec)
passed 74/77 esh-cmd-test/while-loop-ext-cmd (0.103267 sec)
passed 75/77 esh-cmd-test/while-loop-lisp-body (0.000884 sec)
passed 76/77 esh-cmd-test/while-loop-lisp-form (0.001272 sec)
passed 77/77 esh-cmd-test/while-loop-pipe (0.102147 sec)
Ran 77 tests, 76 results as expected, 1 unexpected (2025-07-15
18:19:51-0700, 5.990603 sec)
1 unexpected results:
FAILED esh-cmd-test/reset-in-pipeline/subcommand
bug-gnu-emacs <at> gnu.org:bug#79030; Package emacs.
(Wed, 16 Jul 2025 12:06:01 GMT) Full text and rfc822 format available.Message #8 received at 79030 <at> debbugs.gnu.org (full text, mbox):
From: Eli Zaretskii <eliz <at> gnu.org> To: Paul Eggert <eggert <at> cs.ucla.edu>, Jim Porter <jporterbugs <at> gmail.com> Cc: 79030 <at> debbugs.gnu.org Subject: Re: bug#79030: rare failure of esh-cmd-test/reset-in-pipeline/subcommand Date: Wed, 16 Jul 2025 15:04:16 +0300
> Date: Tue, 15 Jul 2025 23:50:13 -0700
> From: Paul Eggert <eggert <at> cs.ucla.edu>
>
> On the master branch, on Ubuntu 25.04 x86-64, I ran "make -j12 check"
> about 130 times in sequence, and eventually got a failure in
> esh-cmd-test/reset-in-pipeline/subcommand. The problem is most likely
> timing related. The rest of this email is a copy of the failed
> esh-cmd-tests.log.
Thanks.
Jim, any ideas or suggestions?
> Running 77 tests (2025-07-15 18:19:45-0700, selector ‘(not (or (tag
> :expensive-test) (tag :unstable) (tag :nativecomp)))’)
> passed 1/77 esh-cmd-test/and-operator (0.221212 sec)
> passed 2/77 esh-cmd-test/and-operator/output (0.205419 sec)
> [sleep]+ Done (/usr/bin/sleep 10)
> passed 3/77 esh-cmd-test/background/kill (0.101571 sec)
> [echo]+ Done (/usr/bin/echo hi)
> passed 4/77 esh-cmd-test/background/simple-command (0.102426 sec)
> [echo]+ Done (/usr/bin/echo hello)
> [rev]+ Done (/usr/bin/rev)
> passed 5/77 esh-cmd-test/background/subcommand (0.102975 sec)
> passed 6/77 esh-cmd-test/backquoted-lisp-form (0.000991 sec)
> passed 7/77 esh-cmd-test/backquoted-lisp-form/splice (0.000762 sec)
> passed 8/77 esh-cmd-test/command-not-found/pipeline (0.102448 sec)
> passed 9/77 esh-cmd-test/empty-background-command (0.000850 sec)
> passed 10/77 esh-cmd-test/for-loop (0.001163 sec)
> passed 11/77 esh-cmd-test/for-loop-lisp-body (0.000946 sec)
> passed 12/77 esh-cmd-test/for-loop-list (0.012570 sec)
> passed 13/77 esh-cmd-test/for-loop-mixed-args (0.001573 sec)
> passed 14/77 esh-cmd-test/for-loop-name (0.000959 sec)
> passed 15/77 esh-cmd-test/for-loop-name-shadow (0.001693 sec)
> passed 16/77 esh-cmd-test/for-loop-pipe (0.102910 sec)
> passed 17/77 esh-cmd-test/for-loop-range (0.002508 sec)
> passed 18/77 esh-cmd-test/for-loop-string (0.000966 sec)
> passed 19/77 esh-cmd-test/for-loop-vector (0.000988 sec)
> passed 20/77 esh-cmd-test/if-else-statement (0.002046 sec)
> passed 21/77 esh-cmd-test/if-else-statement-chain (0.001977 sec)
> passed 22/77 esh-cmd-test/if-else-statement-ext-cmd (0.103959 sec)
> passed 23/77 esh-cmd-test/if-else-statement-lisp-body (0.001634 sec)
> passed 24/77 esh-cmd-test/if-else-statement-lisp-form (0.002191 sec)
> passed 25/77 esh-cmd-test/if-else-statement-lisp-form-2 (0.002140 sec)
> passed 26/77 esh-cmd-test/if-else-statement-pipe (0.204174 sec)
> passed 27/77 esh-cmd-test/if-statement (0.003827 sec)
> passed 28/77 esh-cmd-test/if-statement-pipe (0.204486 sec)
> passed 29/77 esh-cmd-test/invoke-directly/complex (0.000759 sec)
> passed 30/77 esh-cmd-test/invoke-directly/complex-subcmd (0.000773
> sec)
> passed 31/77 esh-cmd-test/invoke-directly/multiple-cmds (0.000654 sec)
> passed 32/77 esh-cmd-test/invoke-directly/no-args (0.000678 sec)
> passed 33/77 esh-cmd-test/invoke-directly/subcmd (0.000857 sec)
> passed 34/77 esh-cmd-test/invoke-directly/with-args (0.000647 sec)
> passed 35/77 esh-cmd-test/let-rebinds-after-defer (0.103729 sec)
> passed 36/77 esh-cmd-test/lisp-command (0.000588 sec)
> passed 37/77 esh-cmd-test/lisp-command-args (0.000541 sec)
> passed 38/77 esh-cmd-test/lisp-command-with-quote (0.000449 sec)
> passed 39/77 esh-cmd-test/or-operator (0.205100 sec)
> passed 40/77 esh-cmd-test/or-operator/output (0.206857 sec)
> passed 41/77 esh-cmd-test/pipeline-wait/head-proc (0.102134 sec)
> passed 42/77 esh-cmd-test/pipeline-wait/multi-proc (1.106663 sec)
> passed 43/77 esh-cmd-test/pipeline-wait/nested-pipes (1.108869 sec)
> passed 44/77 esh-cmd-test/pipeline-wait/subcommand (0.103447 sec)
> passed 45/77 esh-cmd-test/pipeline-wait/subcommand-with-pipe
> (0.119194 sec)
> passed 46/77 esh-cmd-test/pipeline-wait/tail-proc (0.102325 sec)
> passed 47/77 esh-cmd-test/pipeline/replace-command (0.002533 sec)
> passed 48/77 esh-cmd-test/quoted-lisp-form (0.000730 sec)
> passed 49/77 esh-cmd-test/reset-in-pipeline/lisp (0.103057 sec)
> Test esh-cmd-test/reset-in-pipeline/subcommand backtrace:
> signal(ert-test-failed (((should (eshell-command-result--equal comma
> ert-fail(((should (eshell-command-result--equal command (eshell-test
> (if (unwind-protect (setq value-7 (apply fn-5 args-6)) (setq form-de
> (let (form-description-9) (if (unwind-protect (setq value-7 (apply f
> (let ((value-7 'ert-form-evaluation-aborted-8)) (let (form-descripti
> (let* ((fn-5 #'eshell-command-result--equal) (args-6 (condition-case
> (let ((eshell-module-loading-messages nil)) (let* ((fn-5 #'eshell-co
> (let ((ert--infos (cons (cons "Command logs: " #'eshell-get-debug-lo
> eshell-command-result-equal("*cat $<echo | echo $eshell-in-pipeline-
> #f(compiled-function () #<bytecode -0x19894490097a61f1>)()
> #f(compiled-function () #<bytecode -0x1ef738f5a9e10056>)()
> handler-bind-1(#f(compiled-function () #<bytecode -0x1ef738f5a9e1005
> ert--run-test-internal(#s(ert--test-execution-info :test #s(ert-test
> ert-run-test(#s(ert-test :name esh-cmd-test/reset-in-pipeline/subcom
> ert-run-or-rerun-test(#s(ert--stats :selector ... :tests ... :test-m
> ert-run-tests((not (or (tag :expensive-test) (tag :unstable) (tag :n
> ert-run-tests-batch((not (or (tag :expensive-test) (tag :unstable) (
> ert-run-tests-batch-and-exit((not (or (tag :expensive-test) (tag :un
> eval((ert-run-tests-batch-and-exit '(not (or (tag :expensive-test) (
> command-line-1(("-L" ":." "-l" "ert" "--eval" "(setq treesit-extra-l
> command-line()
> normal-top-level()
> Test esh-cmd-test/reset-in-pipeline/subcommand condition:
> Command logs: command: "*cat $<echo | echo $eshell-in-pipeline-p |
> echo> | *cat"
>
> ----------------------------------------
> [process] started external process ‘cat’
>
> /usr/bin/cat
> ----------------------------------------
> [process] started external process ‘cat<1>’
>
> /usr/bin/cat /tmp/rEfiLP
> ----------------------------------------
> [process] received output from process ‘cat<1>’
>
> t
>
> ----------------------------------------
> [process] forwarding output from process ‘cat<1>’
>
> t
>
> ----------------------------------------
> [process] received output from process ‘cat’
>
> t
>
> ----------------------------------------
> [process] forwarding output from process ‘cat’
>
> t
>
> ----------------------------------------
> [process] sentinel for external process ‘cat<1>’:
> "finished
> "
> ----------------------------------------
> [process] i/o busy for process ‘cat<1>’
> ----------------------------------------
> [process] sentinel for external process ‘cat-stderr’:
> "finished
> "
> ----------------------------------------
> [process] finished external process ‘cat-stderr’
> ----------------------------------------
> [process] finished external process ‘cat<1>’
> ----------------------------------------
> [process] sentinel for external process ‘cat’: "finished
> "
> ----------------------------------------
> [process] finished external process ‘cat’
> (ert-test-failed
> ((should
> (eshell-command-result--equal command
> (eshell-test-command-result command)
> result))
> :form
> (eshell-command-result--equal
> "*cat $<echo | echo $eshell-in-pipeline-p | echo> | *cat" "t\n" "t")
> :value nil :explanation
> (nonequal-result
> (command "*cat $<echo | echo $eshell-in-pipeline-p | echo> | *cat")
> (result "t\n") (expected "t"))))
> FAILED 50/77 esh-cmd-test/reset-in-pipeline/subcommand (0.641031
> sec) at lisp/eshell/esh-cmd-tests.el:273
> passed 51/77 esh-cmd-test/simple-command-result (0.001157 sec)
> passed 52/77 esh-cmd-test/skip-leading-nils (0.001570 sec)
> passed 53/77 esh-cmd-test/subcommand (0.001292 sec)
> passed 54/77 esh-cmd-test/subcommand-args (0.001372 sec)
> passed 55/77 esh-cmd-test/subcommand-lisp (0.000725 sec)
> passed 56/77 esh-cmd-test/subcommand-shadow-value (0.001680 sec)
> passed 57/77 esh-cmd-test/throw (0.001959 sec)
> passed 58/77 esh-cmd-test/unless-else-statement (0.002314 sec)
> passed 59/77 esh-cmd-test/unless-else-statement-ext-cmd (0.108885 sec)
> passed 60/77 esh-cmd-test/unless-else-statement-lisp-form
> (0.003231 sec)
> passed 61/77 esh-cmd-test/unless-statement (0.001704 sec)
> passed 62/77 esh-cmd-test/until-loop (0.001488 sec)
> passed 63/77 esh-cmd-test/until-loop-ext-cmd (0.103259 sec)
> passed 64/77 esh-cmd-test/until-loop-lisp-form (0.002376 sec)
> passed 65/77 esh-cmd-test/which/alias (0.001724 sec)
> passed 66/77 esh-cmd-test/which/explicit (0.001203 sec)
> passed 67/77 esh-cmd-test/which/explicit/not-found (0.001120 sec)
> passed 68/77 esh-cmd-test/which/plain/eshell-builtin (0.001701 sec)
> passed 69/77 esh-cmd-test/which/plain/external-program (0.001325 sec)
> passed 70/77 esh-cmd-test/which/plain/not-found (0.001281 sec)
> passed 71/77 esh-cmd-test/which/quoted-file (0.000875 sec)
> passed 72/77 esh-cmd-test/which/quoted-file/not-found (0.000852 sec)
> passed 73/77 esh-cmd-test/while-loop (0.018836 sec)
> passed 74/77 esh-cmd-test/while-loop-ext-cmd (0.103267 sec)
> passed 75/77 esh-cmd-test/while-loop-lisp-body (0.000884 sec)
> passed 76/77 esh-cmd-test/while-loop-lisp-form (0.001272 sec)
> passed 77/77 esh-cmd-test/while-loop-pipe (0.102147 sec)
>
> Ran 77 tests, 76 results as expected, 1 unexpected (2025-07-15
> 18:19:51-0700, 5.990603 sec)
>
> 1 unexpected results:
> FAILED esh-cmd-test/reset-in-pipeline/subcommand
>
>
>
>
>
>
bug-gnu-emacs <at> gnu.org:bug#79030; Package emacs.
(Wed, 16 Jul 2025 16:46:02 GMT) Full text and rfc822 format available.Message #11 received at 79030 <at> debbugs.gnu.org (full text, mbox):
From: Jim Porter <jporterbugs <at> gmail.com> To: Eli Zaretskii <eliz <at> gnu.org>, Paul Eggert <eggert <at> cs.ucla.edu> Cc: 79030 <at> debbugs.gnu.org Subject: Re: bug#79030: rare failure of esh-cmd-test/reset-in-pipeline/subcommand Date: Wed, 16 Jul 2025 09:45:14 -0700
On 7/16/2025 5:04 AM, Eli Zaretskii wrote: >> Date: Tue, 15 Jul 2025 23:50:13 -0700 >> From: Paul Eggert <eggert <at> cs.ucla.edu> >> >> On the master branch, on Ubuntu 25.04 x86-64, I ran "make -j12 check" >> about 130 times in sequence, and eventually got a failure in >> esh-cmd-test/reset-in-pipeline/subcommand. The problem is most likely >> timing related. The rest of this email is a copy of the failed >> esh-cmd-tests.log. > > Thanks. > > Jim, any ideas or suggestions? What's interesting here is that the actual output is correct, except that it has an extraneous newline: > (nonequal-result > (command "*cat $<echo | echo $eshell-in-pipeline-p | echo> | *cat") > (result "t\n") (expected "t")))) This test case is testing what happens in some relatively-complex pipeline, where we redirect the inner $<...> command to a temp file, and then the first cat reads that file, piping it to a second cat. The inner command is just making sure that we set the internal $eshell-in-pipeline-p variable correctly (it should be 't' here). By default, Eshell echo doesn't emit a newline (for complicated reasons). So, it's something like this in a regular shell: echo -n t > /tmp/something cat /tmp/something | cat Based on the logs, I think what's happening is that the $<...> is adding a trailing newline to the temp file. I don't know why that's happening though, especially not randomly. My guess is that somehow the buffer for the temp file changed away from 'fundamental-mode' to some text mode. You can see something like this happen if you run the Eshell command above, then retry it with 'major-mode' set to 'text-mode'; it'll add a newline in the latter case.
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