From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.bugs Subject: bug#48476: Bug#988581: emacs-gtk: Emacs hangs with 100% cpu if started within a current directory that has a name ending with ".tar" Date: Mon, 17 May 2021 17:24:51 +0200 Message-ID: <87k0nx8jss.fsf@gmail.com> References: <162115594747.5027.12325478473634405780.reportbug@ant64> <875yzis39m.fsf@trouble.defaultvalue.org> <87h7j1juau.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11829"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 988581-forwarded@bugs.debian.org, Thomas Lundqvist , 988581@bugs.debian.org, Michael Albinus , 48476@debbugs.gnu.org, Rob Browning To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon May 17 17:26:23 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lif8P-0002qM-G0 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Mon, 17 May 2021 08:24:52 -0700 (PDT) In-Reply-To: <87h7j1juau.fsf@gnus.org> (Lars Ingebrigtsen's message of "Mon, 17 May 2021 16:42:33 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:206722 Archived-At: >>>>> On Mon, 17 May 2021 16:42:33 +0200, Lars Ingebrigtsen said: Lars> Rob Browning writes: >>> My emacs get stuck with 100% cpu when started from a directory ending with >>> ".tar". >>> >>> For example, the following commands trigger the error: >>> - mkdir test.tar >>> - cd test.tar >>> - emacs Lars> I can reproduce this on Debian/bullseye on the trunk, too -- Emacs uses Lars> 100% CPU and can't be interrupted with `C-g'. Lars> strace seems to say that it's inflooping like this: Lars> pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.so.gz", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.elc", O_RDONLY|O_CLOEXEC) = 15 Lars> [pid 70536] fstat(15, {st_mode=S_IFREG|0644, st_size=24503, ...}) = 0 Lars> [pid 70536] read(15, ";ELC\33\0\0\0\n;;; Compiled\n;;; in Ema"..., 512) = 512 Lars> [pid 70536] lseek(15, 0, SEEK_SET) = 0 Lars> [pid 70536] newfstatat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.elc", {st_mode=S_IFREG|0644, st_size=24503, ...}, 0) = 0 Lars> [pid 70536] newfstatat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.el", {st_mode=S_IFREG|0644, st_size=28504, ...}, 0) = 0 Lars> [pid 70536] fcntl(15, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE) Lars> [pid 70536] fstat(15, {st_mode=S_IFREG|0644, st_size=24503, ...}) = 0 Lars> [pid 70536] read(15, ";ELC\33\0\0\0\n;;; Compiled\n;;; in Ema"..., 4096) = 4096 Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.so.gz", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.elc", O_RDONLY|O_CLOEXEC) = 16 Lars> [pid 70536] fstat(16, {st_mode=S_IFREG|0644, st_size=24503, ...}) = 0 Lars> [pid 70536] read(16, ";ELC\33\0\0\0\n;;; Compiled\n;;; in Ema"..., 512) = 512 Lars> [pid 70536] lseek(16, 0, SEEK_SET) = 0 Lars> [pid 70536] newfstatat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.el", {st_mode=S_IFREG|0644, st_size=28504, ...}, 0) = 0 Lars> [pid 70536] fcntl(16, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE) Lars> [pid 70536] fstat(16, {st_mode=S_IFREG|0644, st_size=24503, ...}) = 0 Lars> [pid 70536] read(16, ";ELC\33\0\0\0\n;;; Compiled\n;;; in Ema"..., 4096) = 4096 Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.so.gz", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.elc", O_RDONLY|O_CLOEXEC) = 17 Lars> [pid 70536] fstat(17, {st_mode=S_IFREG|0644, st_size=24503, ...}) = 0 Lars> [pid 70536] close(17) = 0 Lars> [pid 70536] close(16) = 0 Lars> [pid 70536] close(15) = 0 Lars> [pid 70536] close(14) = 0 Lars> [pid 70536] close(13) = 0 Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) Lars> [pid 70536] openat(AT_FDCWD, "/home/larsi/src/emacs/trunk/lisp/net/tramp-archive.so.gz", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) I have a backtrace from gdb that might shed some light. Michael, this is emacs signalling an error for a recursive load, apparently forever. master has the same issue. I set a breakpoint at lread.c:1366 { int load_count = 0; Lisp_Object tem = Vloads_in_progress; FOR_EACH_TAIL_SAFE (tem) if (!NILP (Fequal (found, XCAR (tem))) && (++load_count > 3)) -> signal_error ("Recursive load", Fcons (found, Vloads_in_progress)); record_unwind_protect (record_load_unwind, Vloads_in_progress); Vloads_in_progress = Fcons (found, Vloads_in_progress); } and got this backtrace, which implicates 'tramp-archive-autoload-file-name-handler' Thread 1 "emacs" hit Breakpoint 5, Fload (file=XIL(0x555556847f74), noerror=XIL(0), nomessage=XIL(0x30), nosuffix=, must_suffix=) at lread.c:1366 1366 signal_error ("Recursive load", Fcons (found, Vloads_in_progress)); (gdb) bt #0 Fload (file=XIL(0x555556847f74), noerror=XIL(0), nomessage=XIL(0x30), nosuffix=, must_suffix=) at lread.c:1366 #1 0x000055555572be5a in save_match_data_load (file=XIL(0x555556847f74), noerror=noerror@entry=XIL(0), nomessage=nomessage@entry=XIL(0x30), nosuffix=nosuffix@entry=XIL(0), must_suffix=must_suffix@entry=XIL(0x30)) at lread.c:1616 #2 0x0000555555702881 in Fautoload_do_load (fundef=XIL(0x55555677e753), funname=XIL(0xbc9bd0), macro_only=XIL(0)) at eval.c:2308 #3 0x0000555555702af2 in Ffuncall (nargs=4, args=0x7fffffff92c0) at lisp.h:1002 #4 0x0000555555702d04 in call3 (fn=, arg1=, arg2=, arg3=) at eval.c:2910 #5 0x00005555556b8d76 in Fexpand_file_name (name=XIL(0x55555649d1c4), default_directory=) at fileio.c:905 #6 0x000055555572ab71 in readevalloop (readcharfun=XIL(0x7770), infile0=0x7fffffff9500, sourcename=XIL(0x55555649d1c4), printflag=false, unibyte=XIL(0), readfun=XIL(0), start=, end=XIL(0)) at lisp.h:1002 #7 0x000055555572bbb1 in Fload (file=, noerror=XIL(0), nomessage=XIL(0x30), nosuffix=, must_suffix=) at lisp.h:1002 #8 0x000055555572be5a in save_match_data_load (file=XIL(0x555556847f74), noerror=noerror@entry=XIL(0), nomessage=nomessage@entry=XIL(0x30), nosuffix=nosuffix@entry=XIL(0), must_suffix=must_suffix@entry=XIL(0x30)) at lread.c:1616 #9 0x0000555555702881 in Fautoload_do_load (fundef=XIL(0x55555677e753), funname=XIL(0xbc9bd0), macro_only=XIL(0)) at eval.c:2308 #10 0x0000555555702af2 in Ffuncall (nargs=4, args=0x7fffffff96b0) at lisp.h:1002 #11 0x0000555555702d04 in call3 (fn=, arg1=, arg2=, arg3=) at eval.c:2910 #12 0x00005555556b8d76 in Fexpand_file_name (name=XIL(0x55555649cff4), default_directory=) at fileio.c:905 #13 0x000055555572ab71 in readevalloop (readcharfun=XIL(0x7770), infile0=0x7fffffff98f0, sourcename=XIL(0x55555649cff4), printflag=false, unibyte=XIL(0), readfun=XIL(0), start=, end=XIL(0)) at lisp.h:1002 #14 0x000055555572bbb1 in Fload (file=, noerror=XIL(0), nomessage=XIL(0x30), nosuffix=, must_suffix=) at lisp.h:1002 #15 0x000055555572be5a in save_match_data_load (file=XIL(0x555556847f74), noerror=noerror@entry=XIL(0), nomessage=nomessage@entry=XIL(0x30), nosuffix=nosuffix@entry=XIL(0), must_suffix=must_suffix@entry=XIL(0x30)) at lread.c:1616 #16 0x0000555555702881 in Fautoload_do_load (fundef=XIL(0x55555677e753), funname=XIL(0xbc9bd0), macro_only=XIL(0)) at eval.c:2308 #17 0x0000555555702af2 in Ffuncall (nargs=4, args=0x7fffffff9aa0) at lisp.h:1002 #18 0x0000555555702d04 in call3 (fn=, arg1=, arg2=, arg3=) at eval.c:2910 #19 0x00005555556b8d76 in Fexpand_file_name (name=XIL(0x55555649ce74), default_directory=) at fileio.c:905 #20 0x000055555572ab71 in readevalloop (readcharfun=XIL(0x7770), infile0=0x7fffffff9ce0, sourcename=XIL(0x55555649ce74), printflag=false, unibyte=XIL(0), readfun=XIL(0), start=, end=XIL(0)) at lisp.h:1002 #21 0x000055555572bbb1 in Fload (file=, noerror=XIL(0), nomessage=XIL(0x30), nosuffix=, must_suffix=) at lisp.h:1002 #22 0x000055555572be5a in save_match_data_load (file=XIL(0x555556847f74), noerror=noerror@entry=XIL(0), nomessage=nomessage@entry=XIL(0x30), nosuffix=nosuffix@entry=XIL(0), must_suffix=must_suffix@entry=XIL(0x30)) at lread.c:1616 #23 0x0000555555702881 in Fautoload_do_load (fundef=XIL(0x55555677e753), funname=XIL(0xbc9bd0), macro_only=XIL(0)) at eval.c:2308 #24 0x0000555555702af2 in Ffuncall (nargs=4, args=0x7fffffff9e90) at lisp.h:1002 #25 0x0000555555702d04 in call3 (fn=, arg1=, arg2=, arg3=) at eval.c:2910 #26 0x00005555556b8d76 in Fexpand_file_name (name=XIL(0x5555568573e4), default_directory=) at fileio.c:905 #27 0x000055555572ab71 in readevalloop (readcharfun=XIL(0x7770), infile0=0x7fffffffa0d0, sourcename=XIL(0x5555568573e4), printflag=false, unibyte=XIL(0), readfun=XIL(0), start=, end=XIL(0)) at lisp.h:1002 #28 0x000055555572bbb1 in Fload (file=, noerror=XIL(0), nomessage=XIL(0x30), nosuffix=, must_suffix=) at lisp.h:1002 #29 0x000055555572be5a in save_match_data_load (file=XIL(0x555556847f74), noerror=noerror@entry=XIL(0), nomessage=nomessage@entry=XIL(0x30), nosuffix=nosuffix@entry=XIL(0), must_suffix=must_suffix@entry=XIL(0x30)) at lread.c:1616 #30 0x0000555555702881 in Fautoload_do_load (fundef=XIL(0x55555677e753), funname=XIL(0xbc9bd0), macro_only=XIL(0)) at eval.c:2308 #31 0x0000555555702af2 in Ffuncall (nargs=5, args=0x7fffffffa2a8) at lisp.h:1002 #32 0x000055555573df98 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=, nargs=, args=) at bytecode.c:632 #33 0x0000555555702b37 in Ffuncall (nargs=4, args=0x7fffffffa580) at eval.c:3052 #34 0x00005555557049f8 in Fapply (nargs=2, args=0x7fffffffa610) at eval.c:2666 #35 0x00005555557052fc in eval_sub (form=) at lisp.h:731 #36 0x0000555555705ca5 in Fprogn (body=XIL(0)) at eval.c:471 #37 funcall_lambda (fun=, nargs=4, arg_vector=0x7fffffffa7d0) at eval.c:3313 #38 0x0000555555702b37 in Ffuncall (nargs=5, args=0x7fffffffa7c8) at eval.c:3052 #39 0x000055555573df98 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=, nargs=, args=) at bytecode.c:632 #40 0x0000555555702b37 in Ffuncall (nargs=2, args=0x7fffffffaaa0) at eval.c:3052 #41 0x0000555555702caa in call1 (fn=, arg1=arg1@entry=XIL(0x555555caf184)) at eval.c:2896 #42 0x00005555555d9b17 in decode_mode_spec (string=, field_width=1, c=, w=) at xdisp.c:26947 #43 display_mode_element (it=, depth=, field_width=, precision=, elt=, props=XIL(0), risky=) at xdisp.c:25855 #44 0x00005555555d98b2 in display_mode_element (it=0x7fffffffadd0, depth=3, field_width=0, precision=-5, elt=, props=XIL(0), risky=) at lisp.h:719 #45 0x00005555555d98b2 in display_mode_element (it=0x7fffffffadd0, depth=1, field_width=0, precision=0, elt=, props=XIL(0), risky=) at lisp.h:719 #46 0x00005555555db1a4 in display_mode_line (w=w@entry=0x55555602f120, face_id=, format=XIL(0x7ffff1c35e2b)) at lisp.h:1002 #47 0x00005555555db3ce in display_mode_lines (w=w@entry=0x55555602f120) at xdisp.c:25415 #48 0x00005555555db613 in redisplay_mode_lines (window=XIL(0x55555602f125), force=force@entry=false) at xdisp.c:25351 #49 0x00005555555e68fb in echo_area_display (update_frame_p=) at xdisp.c:12289 #50 0x00005555555e6a59 in message3_nolog (m=) at xdisp.c:11232 #51 0x00005555555e6cc8 in message3 (m=m@entry=XIL(0x555556034f54)) at xdisp.c:11162 #52 0x00005555556f9df0 in Fmessage (args=0x7fffffffc350, nargs=) at editfns.c:2875 #53 Fmessage (nargs=, args=0x7fffffffc350) at editfns.c:2843 #54 0x0000555555702bfb in Ffuncall (nargs=3, args=0x7fffffffc348) at eval.c:3036 #55 0x000055555573df98 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=, nargs=, args=) at bytecode.c:632 #56 0x0000555555702b37 in Ffuncall (nargs=1, args=0x7fffffffc690) at eval.c:3052 #57 0x000055555573df98 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=, nargs=, args=) at bytecode.c:632 #58 0x0000555555702b37 in Ffuncall (nargs=2, args=0x7fffffffce68) at eval.c:3052 #59 0x000055555573df98 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=, nargs=, args=) at bytecode.c:632 #60 0x0000555555702b37 in Ffuncall (nargs=1, args=0x7fffffffd730) at eval.c:3052 #61 0x000055555573df98 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=, nargs=, args=) at bytecode.c:632 #62 0x0000555555705e5f in apply_lambda (fun=XIL(0x7ffff1bc6d85), args=, count=4) at eval.c:3185 #63 0x0000555555704ee3 in eval_sub (form=) at eval.c:2588 #64 0x0000555555706b09 in Feval (form=XIL(0x7ffff20f0e2b), lexical=) at eval.c:2340 #65 0x0000555555701bd7 in internal_condition_case (bfun=bfun@entry=0x555555687050 , handlers=handlers@entry=XIL(0x90), hfun=hfun@entry=0x55555568c860 ) at eval.c:1475 #66 0x0000555555687cc6 in top_level_1 (ignore=ignore@entry=XIL(0)) at keyboard.c:1111 #67 0x00005555557040d3 in internal_catch (tag=tag@entry=XIL(0xe4c0), func=func@entry=0x555555687ca0 , arg=arg@entry=XIL(0)) at eval.c:1198 #68 0x0000555555686fd8 in command_loop () at lisp.h:1002 #69 0x000055555568c476 in recursive_edit_1 () at keyboard.c:720 #70 0x000055555568c7a2 in Frecursive_edit () at keyboard.c:789 #71 0x00005555555a2cda in main (argc=2, argv=) at emacs.c:2297 Lisp Backtrace: "tramp-archive-file-name-handler" (0xffff92c8) "tramp-archive-file-name-handler" (0xffff96b8) "tramp-archive-file-name-handler" (0xffff9aa8) "tramp-archive-file-name-handler" (0xffff9e98) "tramp-archive-file-name-handler" (0xffffa2b0) "file-remote-p" (0xffffa588) "apply" (0xffffa610) "tramp-archive-autoload-file-name-handler" (0xffffa7d0) "file-remote-p" (0xffffaaa8) "message" (0xffffc350) "display-startup-echo-area-message" (0xffffc698) "command-line-1" (0xffffce70) "command-line" (0xffffd738) "normal-top-level" (0xffffdc00) (gdb) Robert --