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raboof / notion

Tiling tabbed window manager
https://notionwm.net/
GNU Lesser General Public License v2.1
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__pthread_tpp_change_priority: Assertion failed #345

Closed raboof closed 2 years ago

raboof commented 2 years ago

originally reported at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1016363#15

notion 4.0.2+dfsg-6 with libx11-6 2:1.8.1-1 crashes with this message:

  notion: tpp.c:82: __pthread_tpp_change_priority: Assertion `new_prio == -1 || (new_prio >= fifo_min_prio && new_prio <= fifo_max_prio)' failed.

Rebuilding libx11 with the new --disable-thread-safety-constructor flag reportedly makes notion work again.

raboof commented 2 years ago

inconvenient day for https://gitlab.freedesktop.org to be down :laughing:

raboof commented 2 years ago

I linked notion to libX11 1.8.1 in https://github.com/raboof/nixpkgs/commit/bb8ba82b7ab3f878bacb5d4e34781722d71a7678 but that did not reproduce the problem.

Verified it does link to libX11 1.8.1:

ldd /nix/store/88yv92n0x32z7
7ifs678qf10ki2i0qn0-notion-4.0.2/bin/.notion-wrapped
    linux-vdso.so.1 (0x00007ffddb0e9000)
    libX11.so.6 => /nix/store/5p8aiag8knq7bp7x5gvv6srf0k3n7rqa-libX11-1.8.1/lib/libX11.so.6 (0x00007fde9a59d000)
    libXext.so.6 => /nix/store/x0cpggi73rhsm6cwfl9r8q0qvzx72ysl-libXext-1.3.4/lib/libXext.so.6 (0x00007fde9a588000)
    liblua.so.5.2 => /nix/store/67dsy6ca9cmf82d4sax2xhig7wxmqw10-lua-5.2.4/lib/liblua.so.5.2 (0x00007fde9a550000)
    libm.so.6 => /nix/store/mhhlymrg2m70r8h94cwhv2d7a0c8l7g6-glibc-2.34-210/lib/libm.so.6 (0x00007fde9a477000)
    libc.so.6 => /nix/store/mhhlymrg2m70r8h94cwhv2d7a0c8l7g6-glibc-2.34-210/lib/libc.so.6 (0x00007fde9a277000)
    libxcb.so.1 => /nix/store/dy7i1aqsf0rfm91bcif0z5m9zg6clmd7-libxcb-1.14/lib/libxcb.so.1 (0x00007fde9a24c000)
    libdl.so.2 => /nix/store/mhhlymrg2m70r8h94cwhv2d7a0c8l7g6-glibc-2.34-210/lib/libdl.so.2 (0x00007fde9a247000)
    libreadline.so.6 => /nix/store/4cg6k2d48ym4jqp4py9vdy3rqy5hw4s4-readline-6.3p08/lib/libreadline.so.6 (0x00007fde9a1fd000)
    libncursesw.so.6 => /nix/store/pkv4ngqc7arfqpr1bsn1bappvms9xbfg-ncurses-6.3-p20220507/lib/libncursesw.so.6 (0x00007fde9a186000)
    /nix/store/mhhlymrg2m70r8h94cwhv2d7a0c8l7g6-glibc-2.34-210/lib/ld-linux-x86-64.so.2 => /nix/store/mhhlymrg2m70r8h94cwhv2d7a0c8l7g6-glibc-2.34-210/lib64/ld-linux-x86-64.so.2 (0x00007fde9a6e5000)
    libXau.so.6 => /nix/store/7xrnhzflapyl0vgj6n3vsjppwm7ls747-libXau-1.0.9/lib/libXau.so.6 (0x00007fde9a181000)
    libXdmcp.so.6 => /nix/store/1rqksyzxkl81r4703m6a0gns5pjc5njs-libXdmcp-1.1.3/lib/libXdmcp.so.6 (0x00007fde9a179000)

... but works normally.

Can anyone reproduce this and provide a backtrace?

raboof commented 2 years ago

/cc @weinholt

weinholt commented 2 years ago

Here's the backtrace. I noticed now that it doesn't crash like this every time, but when it doesn't crash it instead hides all windows and doesn't respond to any commands.

warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
notion: tpp.c:82: __pthread_tpp_change_priority: Assertion `new_prio == -1 || (new_prio >= fifo_min_prio && new_prio <= fifo_max_prio)' failed.

Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
49  ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
=> 0x00007ffff7b198c1 <__GI_raise+321>: 48 8b 84 24 08 01 00 00 mov    rax,QWORD PTR [rsp+0x108]
   0x00007ffff7b198c9 <__GI_raise+329>: 64 48 2b 04 25 28 00 00 00  sub    rax,QWORD PTR fs:0x28
   0x00007ffff7b198d2 <__GI_raise+338>: 75 20   jne    0x7ffff7b198f4 <__GI_raise+372>
   0x00007ffff7b198d4 <__GI_raise+340>: 44 89 c0    mov    eax,r8d
   0x00007ffff7b198d7 <__GI_raise+343>: 48 81 c4 18 01 00 00    add    rsp,0x118
   0x00007ffff7b198de <__GI_raise+350>: c3  ret    
   0x00007ffff7b198df <__GI_raise+351>: 90  nop
(gdb) set print elements 100
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#1  0x00007ffff7b03546 in __GI_abort () at abort.c:79
#2  0x00007ffff7b0342f in __assert_fail_base (fmt=0x7ffff7c79fb8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7ffff77a21b0 "new_prio == -1 || (new_prio >= fifo_min_prio && new_prio <= fifo_max_prio)", file=0x7ffff77a21a4 "tpp.c", line=82, function=<optimized out>) at assert.c:92
#3  0x00007ffff7b12242 in __GI___assert_fail (assertion=assertion@entry=0x7ffff77a21b0 "new_prio == -1 || (new_prio >= fifo_min_prio && new_prio <= fifo_max_prio)", file=file@entry=0x7ffff77a21a4 "tpp.c", line=line@entry=82, function=function@entry=0x7ffff77a2260 <__PRETTY_FUNCTION__.0> "__pthread_tpp_change_priority") at assert.c:101
#4  0x00007ffff779ee19 in __pthread_tpp_change_priority (previous_prio=previous_prio@entry=-1, new_prio=new_prio@entry=7929) at tpp.c:82
#5  0x00007ffff7795975 in __pthread_mutex_lock_full (mutex=0x5555555e3470) at ../nptl/pthread_mutex_lock.c:541
#6  0x00007ffff7e86968 in _XLockDisplay (dpy=0x5555555e5560) at ../../src/locking.c:466
#7  0x00007ffff7e838ad in XInternAtom (dpy=dpy@entry=0x5555555e5560, name=name@entry=0x7ffff7f738f8 "XDCCC_LINEAR_RGB_CORRECTION", onlyIfExists=onlyIfExists@entry=1) at ../../src/IntAtom.c:175
#8  0x00007ffff7ed8f98 in LINEAR_RGB_InitSCCData (dpy=0x5555555e5560, screenNumber=0, pPerScrnInfo=0x555555764bd0) at ../../../src/xcms/LRGB.c:467
#9  0x00007ffff7ee0e22 in _XcmsInitScrnInfo (dpy=0x5555555e5560, screenNumber=0) at ../../../src/xcms/cmsInt.c:333
#10 0x00007ffff7ed4a05 in XcmsDefaultCCC (dpy=dpy@entry=0x5555555e5560, screenNumber=screenNumber@entry=0) at ../../../src/xcms/CCC.c:237
#11 0x00007ffff7ed4a62 in XcmsCreateCCC (dpy=dpy@entry=0x5555555e5560, screenNumber=screenNumber@entry=0, visual=0x5555555f2ac0, clientWhitePt=clientWhitePt@entry=0x0, gamutCompProc=gamutCompProc@entry=0x0, gamutCompClientData=gamutCompClientData@entry=0x0, whitePtAdjProc=0x0, whitePtAdjClientData=0x0) at ../../../src/xcms/CCC.c:108
#12 0x00007ffff7edf675 in CmapRecForColormap (dpy=dpy@entry=0x5555555e5560, cmap=<optimized out>, cmap@entry=32) at ../../../src/xcms/cmsCmap.c:109
#13 0x00007ffff7edfafd in XcmsCCCOfColormap (dpy=dpy@entry=0x5555555e5560, cmap=cmap@entry=32) at ../../../src/xcms/cmsCmap.c:428
#14 0x00007ffff7e7d076 in XAllocNamedColor (dpy=0x5555555e5560, cmap=32, colorname=0x7ffff7a24114 "black", hard_def=0x7fffffffcd20, exact_def=0x7fffffffcd30) at ../../src/GetColor.c:59
#15 0x00007ffff77b1a6b in XftColorAllocName () from /usr/lib/x86_64-linux-gnu/libXft.so.2
#16 0x00007ffff7a2247b in de_alloc_colour (rootwin=<optimized out>, ret=<optimized out>, name=<optimized out>) at ./de/colour.c:18
#17 0x00007ffff7a234f8 in destyle_init (style=style@entry=0x55555575f2b0, rootwin=rootwin@entry=0x5555555c3d70, name=name@entry=0x7ffff7a2464c "*") at ./de/style.c:208
#18 0x00007ffff7a23669 in do_create_style (name=0x7ffff7a2464c "*", rootwin=0x5555555c3d70) at ./de/style.c:264
#19 de_create_style (rootwin=rootwin@entry=0x5555555c3d70, name=name@entry=0x7ffff7a2464c "*") at ./de/style.c:277
#20 0x00007ffff7a20592 in de_init () at ./de/init.c:442
#21 0x0000555555575497 in call_init (modulename=0x5555555c3fa0 "de", handle=0x55555575e140) at ./ioncore/modules.c:136
#22 try_load (file=0x5555555c38d0 "/usr/lib/notion/de.so", UNUSED_param=UNUSED_param@entry=0x0) at ./ioncore/modules.c:227
#23 0x0000555555595b3b in do_try (dir=dir@entry=0x55555563de60 "/usr/lib/notion", file=<optimized out>, tryfn=tryfn@entry=0x555555575255 <try_load>, tryfnparam=tryfnparam@entry=0x0) at ./libextl/readconfig.c:163
#24 0x0000555555595c92 in try_etcpath (files=files@entry=0x7fffffffcf68, tryfn=tryfn@entry=0x555555575255 <try_load>, tryfnparam=tryfnparam@entry=0x0) at ./libextl/readconfig.c:221
#25 0x00005555555961a5 in extl_try_config (fname=fname@entry=0x555555689728 "de", cfdir=cfdir@entry=0x0, tryfn=tryfn@entry=0x555555575255 <try_load>, tryfnparam=tryfnparam@entry=0x0, ext1=ext1@entry=0x5555555a0c71 "so", ext2=ext2@entry=0x0) at ./libextl/readconfig.c:334
#26 0x00005555555755bb in do_load_module (modname=0x555555689728 "de") at ./ioncore/modules.c:248
#27 ioncore_load_module (modname=modname@entry=0x555555689728 "de") at ./ioncore/modules.c:379
#28 0x0000555555587c5b in gr_select_engine (engine=0x555555689728 "de", engine@entry=<error reading variable: value has been optimized out>) at ./ioncore/gr.c:113
#29 0x0000555555592677 in l2chnd_b_s__ (fn=<optimized out>, in=<optimized out>, out=0x7fffffffd350) at ./ioncore/exports.c:142
#30 0x0000555555597ef4 in extl_l1_call_handler2 (st=0x5555555d3db8) at ./libextl/luaextl.c:1904
#31 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d3db8, func=0x5555556a9bd0, nresults=-1) at ./ldo.c:434
#32 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d3db8) at ./ldo.c:498
#33 luaD_callnoyield (L=0x5555555d3db8, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#34 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d3db8, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffd250) at ./ldo.c:142
#35 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d3db8, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffd250, old_top=208, ef=<optimized out>) at ./ldo.c:729
#36 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d3db8, nargs=nargs@entry=1, nresults=nresults@entry=-1, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#37 0x0000555555598b6c in extl_l1_call_handler (st=0x5555555d3db8) at ./libextl/luaextl.c:1992
#38 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d3db8, func=func@entry=0x5555556a9bc0, nresults=nresults@entry=1) at ./ldo.c:434
#39 0x00007ffff7e1f381 in luaV_execute (L=L@entry=0x5555555d3db8) at ./lvm.c:1134
#40 0x00007ffff7e120d8 in luaD_call (nResults=1432174008, func=<optimized out>, L=0x5555555d3db8) at ./ldo.c:499
#41 luaD_callnoyield (L=L@entry=0x5555555d3db8, func=<optimized out>, nResults=nResults@entry=-1) at ./ldo.c:509
#42 0x00007ffff7e0d599 in lua_callk (L=L@entry=0x5555555d3db8, nargs=nargs@entry=0, nresults=nresults@entry=-1, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:925
#43 0x00005555555970f9 in call_loaded (st=0x5555555d3db8) at ./libextl/luaextl.c:1655
#44 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d3db8, func=0x5555556a9ba0, nresults=0) at ./ldo.c:434
#45 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d3db8) at ./ldo.c:498
#46 luaD_callnoyield (L=0x5555555d3db8, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#47 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d3db8, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffd740) at ./ldo.c:142
#48 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d3db8, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffd740, old_top=160, ef=<optimized out>) at ./ldo.c:729
#49 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d3db8, nargs=nargs@entry=0, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#50 0x0000555555598508 in extl_dodo_call_vararg (param=0x7fffffffda40, st=0x5555555d3db8) at ./libextl/luaextl.c:1554
#51 extl_do_call_vararg (st=0x5555555d3db8, param=0x7fffffffda40) at ./libextl/luaextl.c:1598
#52 0x0000555555597526 in extl_docpcall (st=0x5555555d3db8) at ./libextl/luaextl.c:128
#53 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d3db8, func=0x5555556a9b80, nresults=0) at ./ldo.c:434
#54 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d3db8) at ./ldo.c:498
#55 luaD_callnoyield (L=0x5555555d3db8, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#56 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d3db8, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffd990) at ./ldo.c:142
#57 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d3db8, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffd990, old_top=128, ef=<optimized out>) at ./ldo.c:729
#58 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d3db8, nargs=nargs@entry=1, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#59 0x00005555555965da in extl_cpcall (st=0x5555555d3db8, fn=fn@entry=0x555555598412 <extl_do_call_vararg>, ptr=ptr@entry=0x7fffffffda40) at ./libextl/luaextl.c:149
#60 0x000055555559949e in extl_cpcall_call (fn=0x555555598412 <extl_do_call_vararg>, param=0x7fffffffda40, st=<optimized out>) at ./libextl/luaextl.c:1574
#61 extl_call_vararg (fnref=<optimized out>, spec=<optimized out>, rspec=<optimized out>, args=args@entry=0x7fffffffda90) at ./libextl/luaextl.c:1615
#62 0x00005555555995ae in extl_call (fnref=<optimized out>, spec=spec@entry=0x0, rspec=rspec@entry=0x0) at ./libextl/luaextl.c:1625
#63 0x0000555555595e0f in try_call (file=<optimized out>, param=0x7fffffffdcac) at ./libextl/readconfig.c:271
#64 try_call (file=<optimized out>, param=param@entry=0x7fffffffdcac) at ./libextl/readconfig.c:264
#65 0x0000555555595b3b in do_try (dir=dir@entry=0x55555575d460 "/etc/X11/notion", file=<optimized out>, tryfn=tryfn@entry=0x555555595df2 <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffdcac) at ./libextl/readconfig.c:163
#66 0x0000555555595c92 in try_etcpath (files=files@entry=0x7fffffffdc38, tryfn=tryfn@entry=0x555555595df2 <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffdcac) at ./libextl/readconfig.c:221
#67 0x00005555555961a5 in extl_try_config (fname=fname@entry=0x55555563ded8 "look_dusky", cfdir=cfdir@entry=0x55555575d368 "/home/weinholt/.notion/default-session--0", tryfn=tryfn@entry=0x555555595df2 <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffdcac, ext1=ext1@entry=0x5555555a018d "lc", ext2=ext2@entry=0x5555555a4011 "lua") at ./libextl/readconfig.c:334
#68 0x00005555555962eb in extl_read_config (file=file@entry=0x55555563ded8 "look_dusky", sp=0x55555575d368 "/home/weinholt/.notion/default-session--0", warn_nx=warn_nx@entry=1) at ./libextl/readconfig.c:389
#69 0x000055555559773a in extl_dopath (st=0x5555555d3db8) at ./libextl/luaextl.c:447
#70 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d3db8, func=func@entry=0x5555556a9b50, nresults=nresults@entry=0) at ./ldo.c:434
#71 0x00007ffff7e1f381 in luaV_execute (L=L@entry=0x5555555d3db8) at ./lvm.c:1134
#72 0x00007ffff7e120d8 in luaD_call (nResults=1432174008, func=<optimized out>, L=0x5555555d3db8) at ./ldo.c:499
#73 luaD_callnoyield (L=L@entry=0x5555555d3db8, func=<optimized out>, nResults=nResults@entry=-1) at ./ldo.c:509
#74 0x00007ffff7e0d599 in lua_callk (L=L@entry=0x5555555d3db8, nargs=nargs@entry=0, nresults=nresults@entry=-1, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:925
#75 0x00005555555970f9 in call_loaded (st=0x5555555d3db8) at ./libextl/luaextl.c:1655
#76 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d3db8, func=0x5555556a9b30, nresults=0) at ./ldo.c:434
#77 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d3db8) at ./ldo.c:498
#78 luaD_callnoyield (L=0x5555555d3db8, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#79 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d3db8, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffe0c0) at ./ldo.c:142
#80 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d3db8, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffe0c0, old_top=48, ef=<optimized out>) at ./ldo.c:729
#81 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d3db8, nargs=nargs@entry=0, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#82 0x0000555555598508 in extl_dodo_call_vararg (param=0x7fffffffe3c0, st=0x5555555d3db8) at ./libextl/luaextl.c:1554
#83 extl_do_call_vararg (st=0x5555555d3db8, param=0x7fffffffe3c0) at ./libextl/luaextl.c:1598
#84 0x0000555555597526 in extl_docpcall (st=0x5555555d3db8) at ./libextl/luaextl.c:128
#85 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d3db8, func=0x5555556a9b10, nresults=0) at ./ldo.c:434
#86 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d3db8) at ./ldo.c:498
#87 luaD_callnoyield (L=0x5555555d3db8, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#88 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d3db8, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffe310) at ./ldo.c:142
#89 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d3db8, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffe310, old_top=16, ef=<optimized out>) at ./ldo.c:729
#90 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d3db8, nargs=nargs@entry=1, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#91 0x00005555555965da in extl_cpcall (st=0x5555555d3db8, fn=fn@entry=0x555555598412 <extl_do_call_vararg>, ptr=ptr@entry=0x7fffffffe3c0) at ./libextl/luaextl.c:149
#92 0x000055555559949e in extl_cpcall_call (fn=0x555555598412 <extl_do_call_vararg>, param=0x7fffffffe3c0, st=<optimized out>) at ./libextl/luaextl.c:1574
#93 extl_call_vararg (fnref=<optimized out>, spec=<optimized out>, rspec=<optimized out>, args=args@entry=0x7fffffffe410) at ./libextl/luaextl.c:1615
#94 0x00005555555995ae in extl_call (fnref=<optimized out>, spec=spec@entry=0x0, rspec=rspec@entry=0x0) at ./libextl/luaextl.c:1625
#95 0x0000555555595e0f in try_call (file=<optimized out>, param=0x7fffffffe62c) at ./libextl/readconfig.c:271
#96 try_call (file=<optimized out>, param=param@entry=0x7fffffffe62c) at ./libextl/readconfig.c:264
#97 0x0000555555595b3b in do_try (dir=<optimized out>, file=<optimized out>, tryfn=tryfn@entry=0x555555595df2 <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffe62c) at ./libextl/readconfig.c:163
#98 0x0000555555595c0a in try_etcpath (files=files@entry=0x7fffffffe5b8, tryfn=tryfn@entry=0x555555595df2 <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffe62c) at ./libextl/readconfig.c:199
#99 0x00005555555961a5 in extl_try_config (fname=fname@entry=0x5555555a2c71 "look", cfdir=cfdir@entry=0x0, tryfn=tryfn@entry=0x555555595df2 <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffe62c, ext1=ext1@entry=0x5555555a018d "lc", ext2=ext2@entry=0x5555555a4011 "lua") at ./libextl/readconfig.c:334
#100 0x00005555555962eb in extl_read_config (file=file@entry=0x5555555a2c71 "look", sp=sp@entry=0x0, warn_nx=warn_nx@entry=1) at ./libextl/readconfig.c:389
#101 0x0000555555588145 in gr_read_config () at ./ioncore/gr.c:646
#102 0x00005555555788c0 in ioncore_startup (display=display@entry=0x0, cfgfile=cfgfile@entry=0x5555555a009f "cfg_notion", stflags=stflags@entry=0) at ./ioncore/ioncore.c:619
#103 0x0000555555571402 in main (argc=<optimized out>, argv=<optimized out>) at ./notion/notion.c:249
raboof commented 2 years ago

Okay... so apparently it's happening while processing the graphics engine (gr_read_config), which allocates a color on the global display (de_alloc_colour), which initializes some atom, which tries to lock the display, and apparently there's something fishy going on with the mutex used to lock the display.

This is well after ioncore_init_x (which opens and initializes the global display) has finished, and I'd presume that would trigger the xlib ctor, so I'm kinda lost as to why that would trigger a problem.

Any ideas?

raboof commented 2 years ago

Could you perhaps try explicitly calling XInitThreads() from early in ioncore_init_x, so we're really sure it's the first XLib call notion makes, and completes before we do any other Xlib calls?

weinholt commented 2 years ago

I've now tried calling XInitThreads() early with libX11 still configured with --disable-thread-safety-constructor. It still hangs/crashes the same way as before.

I rebuilt notion with this patch:

--- notion-4.0.2+dfsg.orig/ioncore/ioncore.c
+++ notion-4.0.2+dfsg/ioncore/ioncore.c
@@ -485,6 +485,7 @@ static bool ioncore_init_x(const char *d
      */
     assert(!called);
     called=TRUE;
+    XInitThreads();

     /* Open the display. */
     dpy=XOpenDisplay(display);

Recall that notion sometimes fails with an assertion and other times it just hangs. I've captured a backtrace from notion when it just hanged:

#0  futex_wait (private=0, expected=2, futex_word=0x5555555e1090) at ../sysdeps/nptl/futex-internal.h:146
#1  __lll_lock_wait (futex=futex@entry=0x5555555e1090, private=0) at lowlevellock.c:52
#2  0x00007ffff76abfe3 in __GI___pthread_mutex_lock (mutex=0x5555555e1090) at ../nptl/pthread_mutex_lock.c:80
#3  0x00007ffff7eb543f in _XOpenLC () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#4  0x00007ffff7e880cd in XOpenOM () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#5  0x00007ffff7e7c468 in XCreateFontSet () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#6  0x00007ffff7a2eaae in de_create_font_in_current_locale (fontname=fontname@entry=0x7ffff7a3027f "-*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*") at ./de/fontset.c:111
#7  0x00007ffff7a2ef45 in de_create_font_set (fontname=fontname@entry=0x7ffff7a3027f "-*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*") at ./de/fontset.c:218
#8  0x00007ffff7a2dc64 in de_load_font (fontname=fontname@entry=0x7ffff7a3027f "-*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*") at ./de/font.c:95
#9  0x00007ffff7a2df39 in de_load_font_for_style (style=style@entry=0x55555575def0, fontname=0x7ffff7a3027f "-*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*") at ./de/font.c:171
#10 0x00007ffff7a2c585 in de_init () at ./de/init.c:445
#11 0x0000555555575366 in call_init (modulename=0x5555555fbe10 "de", handle=0x55555575cd80) at ./ioncore/modules.c:136
#12 try_load (file=0x5555555c1fc0 "/usr/lib/notion/de.so", UNUSED_param=UNUSED_param@entry=0x0) at ./ioncore/modules.c:227
#13 0x00005555555954ab in do_try (dir=dir@entry=0x55555563be60 "/usr/lib/notion", file=<optimized out>, tryfn=tryfn@entry=0x555555575119 <try_load>, tryfnparam=tryfnparam@entry=0x0) at ./libextl/readconfig.c:163
#14 0x000055555559561b in try_etcpath (files=files@entry=0x7fffffffcf38, tryfn=tryfn@entry=0x555555575119 <try_load>, tryfnparam=tryfnparam@entry=0x0) at ./libextl/readconfig.c:221
#15 0x0000555555595b1a in extl_try_config (fname=fname@entry=0x55555568d5b8 "de", cfdir=cfdir@entry=0x0, tryfn=tryfn@entry=0x555555575119 <try_load>, tryfnparam=tryfnparam@entry=0x0, ext1=ext1@entry=0x55555559fc71 "so", ext2=ext2@entry=0x0) at ./libextl/readconfig.c:334
#16 0x0000555555575489 in do_load_module (modname=0x55555568d5b8 "de") at ./ioncore/modules.c:248
#17 ioncore_load_module (modname=modname@entry=0x55555568d5b8 "de") at ./ioncore/modules.c:379
#18 0x00005555555875fe in gr_select_engine (engine=0x55555568d5b8 "de", engine@entry=<error reading variable: value has been optimized out>) at ./ioncore/gr.c:113
#19 0x0000555555591f8b in l2chnd_b_s__ (fn=<optimized out>, in=<optimized out>, out=0x7fffffffd310) at ./ioncore/exports.c:142
#20 0x0000555555596d0d in extl_l1_call_handler2 (st=0x5555555d1d28) at ./libextl/luaextl.c:1904
#21 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d1d28, func=0x5555556a9460, nresults=-1) at ./ldo.c:434
#22 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d1d28) at ./ldo.c:498
#23 luaD_callnoyield (L=0x5555555d1d28, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#24 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d1d28, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffd210) at ./ldo.c:142
#25 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d1d28, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffd210, old_top=208, ef=<optimized out>) at ./ldo.c:729
#26 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d1d28, nargs=<optimized out>, nresults=nresults@entry=-1, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#27 0x0000555555598443 in extl_l1_call_handler (st=0x5555555d1d28) at ./libextl/luaextl.c:1992
#28 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d1d28, func=func@entry=0x5555556a9450, nresults=nresults@entry=1) at ./ldo.c:434
#29 0x00007ffff7e1f381 in luaV_execute (L=L@entry=0x5555555d1d28) at ./lvm.c:1134
#30 0x00007ffff7e120d8 in luaD_call (nResults=1432165672, func=<optimized out>, L=0x5555555d1d28) at ./ldo.c:499
#31 luaD_callnoyield (L=L@entry=0x5555555d1d28, func=<optimized out>, nResults=nResults@entry=-1) at ./ldo.c:509
#32 0x00007ffff7e0d599 in lua_callk (L=L@entry=0x5555555d1d28, nargs=nargs@entry=0, nresults=nresults@entry=-1, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:925
#33 0x000055555559730e in call_loaded (st=0x5555555d1d28) at ./libextl/luaextl.c:1655
#34 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d1d28, func=0x5555556a9430, nresults=0) at ./ldo.c:434
#35 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d1d28) at ./ldo.c:498
#36 luaD_callnoyield (L=0x5555555d1d28, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#37 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d1d28, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffd700) at ./ldo.c:142
#38 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d1d28, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffd700, old_top=160, ef=<optimized out>) at ./ldo.c:729
#39 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d1d28, nargs=nargs@entry=0, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#40 0x0000555555597ded in extl_dodo_call_vararg (param=0x7fffffffda00, st=0x5555555d1d28) at ./libextl/luaextl.c:1554
#41 extl_do_call_vararg (st=0x5555555d1d28, param=0x7fffffffda00) at ./libextl/luaextl.c:1598
#42 0x0000555555597879 in extl_docpcall (st=0x5555555d1d28) at ./libextl/luaextl.c:128
#43 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d1d28, func=0x5555556a9410, nresults=0) at ./ldo.c:434
#44 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d1d28) at ./ldo.c:498
#45 luaD_callnoyield (L=0x5555555d1d28, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#46 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d1d28, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffd950) at ./ldo.c:142
#47 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d1d28, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffd950, old_top=128, ef=<optimized out>) at ./ldo.c:729
#48 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d1d28, nargs=nargs@entry=1, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#49 0x0000555555595f3b in extl_cpcall (st=0x5555555d1d28, fn=fn@entry=0x555555597ced <extl_do_call_vararg>, ptr=ptr@entry=0x7fffffffda00) at ./libextl/luaextl.c:149
#50 0x0000555555598d5f in extl_cpcall_call (fn=0x555555597ced <extl_do_call_vararg>, param=0x7fffffffda00, st=<optimized out>) at ./libextl/luaextl.c:1574
#51 extl_call_vararg (fnref=<optimized out>, spec=<optimized out>, rspec=<optimized out>, args=args@entry=0x7fffffffda50) at ./libextl/luaextl.c:1615
#52 0x0000555555598e6d in extl_call (fnref=<optimized out>, spec=spec@entry=0x0, rspec=rspec@entry=0x0) at ./libextl/luaextl.c:1625
#53 0x000055555559578a in try_call (file=<optimized out>, param=0x7fffffffdc6c) at ./libextl/readconfig.c:271
#54 try_call (file=<optimized out>, param=param@entry=0x7fffffffdc6c) at ./libextl/readconfig.c:264
#55 0x00005555555954ab in do_try (dir=dir@entry=0x55555575c0a0 "/etc/X11/notion", file=<optimized out>, tryfn=tryfn@entry=0x55555559576d <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffdc6c) at ./libextl/readconfig.c:163
#56 0x000055555559561b in try_etcpath (files=files@entry=0x7fffffffdbf8, tryfn=tryfn@entry=0x55555559576d <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffdc6c) at ./libextl/readconfig.c:221
#57 0x0000555555595b1a in extl_try_config (fname=fname@entry=0x55555563bed8 "look_dusky", cfdir=cfdir@entry=0x55555575bfa8 "/home/weinholt/.notion/default-session--0", tryfn=tryfn@entry=0x55555559576d <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffdc6c, ext1=ext1@entry=0x55555559f10f "lc", ext2=ext2@entry=0x5555555a2fd1 "lua") at ./libextl/readconfig.c:334
#58 0x0000555555595c5a in extl_read_config (file=file@entry=0x55555563bed8 "look_dusky", sp=0x55555575bfa8 "/home/weinholt/.notion/default-session--0", warn_nx=warn_nx@entry=1) at ./libextl/readconfig.c:389
#59 0x0000555555597a88 in extl_dopath (st=0x5555555d1d28) at ./libextl/luaextl.c:447
#60 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d1d28, func=func@entry=0x5555556a93e0, nresults=nresults@entry=0) at ./ldo.c:434
#61 0x00007ffff7e1f381 in luaV_execute (L=L@entry=0x5555555d1d28) at ./lvm.c:1134
#62 0x00007ffff7e120d8 in luaD_call (nResults=1432165672, func=<optimized out>, L=0x5555555d1d28) at ./ldo.c:499
#63 luaD_callnoyield (L=L@entry=0x5555555d1d28, func=<optimized out>, nResults=nResults@entry=-1) at ./ldo.c:509
#64 0x00007ffff7e0d599 in lua_callk (L=L@entry=0x5555555d1d28, nargs=nargs@entry=0, nresults=nresults@entry=-1, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:925
#65 0x000055555559730e in call_loaded (st=0x5555555d1d28) at ./libextl/luaextl.c:1655
#66 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d1d28, func=0x5555556a93c0, nresults=0) at ./ldo.c:434
#67 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d1d28) at ./ldo.c:498
#68 luaD_callnoyield (L=0x5555555d1d28, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#69 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d1d28, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffe080) at ./ldo.c:142
#70 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d1d28, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffe080, old_top=48, ef=<optimized out>) at ./ldo.c:729
#71 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d1d28, nargs=nargs@entry=0, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#72 0x0000555555597ded in extl_dodo_call_vararg (param=0x7fffffffe380, st=0x5555555d1d28) at ./libextl/luaextl.c:1554
#73 extl_do_call_vararg (st=0x5555555d1d28, param=0x7fffffffe380) at ./libextl/luaextl.c:1598
#74 0x0000555555597879 in extl_docpcall (st=0x5555555d1d28) at ./libextl/luaextl.c:128
#75 0x00007ffff7e11d1f in luaD_precall (L=L@entry=0x5555555d1d28, func=0x5555556a93a0, nresults=0) at ./ldo.c:434
#76 0x00007ffff7e1209b in luaD_call (nResults=<optimized out>, func=<optimized out>, L=0x5555555d1d28) at ./ldo.c:498
#77 luaD_callnoyield (L=0x5555555d1d28, func=<optimized out>, nResults=<optimized out>) at ./ldo.c:509
#78 0x00007ffff7e1145f in luaD_rawrunprotected (L=L@entry=0x5555555d1d28, f=f@entry=0x7ffff7e0b070 <f_call>, ud=ud@entry=0x7fffffffe2d0) at ./ldo.c:142
#79 0x00007ffff7e1244b in luaD_pcall (L=L@entry=0x5555555d1d28, func=func@entry=0x7ffff7e0b070 <f_call>, u=u@entry=0x7fffffffe2d0, old_top=16, ef=<optimized out>) at ./ldo.c:729
#80 0x00007ffff7e0d65a in lua_pcallk (L=L@entry=0x5555555d1d28, nargs=nargs@entry=1, nresults=nresults@entry=0, errfunc=errfunc@entry=0, ctx=ctx@entry=0, k=k@entry=0x0) at ./lapi.c:969
#81 0x0000555555595f3b in extl_cpcall (st=0x5555555d1d28, fn=fn@entry=0x555555597ced <extl_do_call_vararg>, ptr=ptr@entry=0x7fffffffe380) at ./libextl/luaextl.c:149
#82 0x0000555555598d5f in extl_cpcall_call (fn=0x555555597ced <extl_do_call_vararg>, param=0x7fffffffe380, st=<optimized out>) at ./libextl/luaextl.c:1574
#83 extl_call_vararg (fnref=<optimized out>, spec=<optimized out>, rspec=<optimized out>, args=args@entry=0x7fffffffe3d0) at ./libextl/luaextl.c:1615
#84 0x0000555555598e6d in extl_call (fnref=<optimized out>, spec=spec@entry=0x0, rspec=rspec@entry=0x0) at ./libextl/luaextl.c:1625
#85 0x000055555559578a in try_call (file=<optimized out>, param=0x7fffffffe5ec) at ./libextl/readconfig.c:271
#86 try_call (file=<optimized out>, param=param@entry=0x7fffffffe5ec) at ./libextl/readconfig.c:264
#87 0x00005555555954ab in do_try (dir=<optimized out>, file=<optimized out>, tryfn=tryfn@entry=0x55555559576d <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffe5ec) at ./libextl/readconfig.c:163
#88 0x000055555559557c in try_etcpath (files=files@entry=0x7fffffffe578, tryfn=tryfn@entry=0x55555559576d <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffe5ec) at ./libextl/readconfig.c:199
#89 0x0000555555595b1a in extl_try_config (fname=fname@entry=0x5555555a1c31 "look", cfdir=cfdir@entry=0x0, tryfn=tryfn@entry=0x55555559576d <try_call>, tryfnparam=tryfnparam@entry=0x7fffffffe5ec, ext1=ext1@entry=0x55555559f10f "lc", ext2=ext2@entry=0x5555555a2fd1 "lua") at ./libextl/readconfig.c:334
#90 0x0000555555595c5a in extl_read_config (file=file@entry=0x5555555a1c31 "look", sp=sp@entry=0x0, warn_nx=warn_nx@entry=1) at ./libextl/readconfig.c:389
#91 0x0000555555587ac0 in gr_read_config () at ./ioncore/gr.c:646
#92 0x000055555557868c in ioncore_startup (display=display@entry=0x0, cfgfile=cfgfile@entry=0x55555559f09f "cfg_notion", stflags=stflags@entry=0) at ./ioncore/ioncore.c:620
#93 0x00005555555713d8 in main (argc=<optimized out>, argv=<optimized out>) at ./notion/notion.c:249
raboof commented 2 years ago

with libX11 still configured with --disable-thread-safety-constructor. It still hangs/crashes the same way as before.

Aha, so that suggests the problem might not have anything to do with https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/afcdb6fb0045c6186aa83d9298f327a7ec1b2cb9 after all? Definitely 'something with threads and mutexes' though - and still something we'd want to fix, of course.

other times it just hangs. I've captured a backtrace from notion when it just hanged

Thanks a lot, that at least gives us something to go on :). So it's also happening in the graphics engine initialization (gr_read_config). It looks like _XOpenLC wants to take the _Xi18n_lock mutex but it is already taken? Is there some way to see what thread might be holding that mutex?

I'm afraid I won't be able to dig much deeper right now, I'm rather busy the coming weeks - would be great if you could hunt it down further!

weinholt commented 2 years ago

I don't think this is a bug in notion. I think the problem is that libX11 uses pthreads but is not built with -pthread. I've written up my findings here: https://gitlab.freedesktop.org/xorg/lib/libx11/-/issues/157#note_1499394

raboof commented 2 years ago

Thanks a lot for the analysis.

I guess there's nothing we can do from the Notion side - it would be nice if we could detect the problem and warn about it specifically, but even that sounds like it'd be a challenge.

Hopefully this issue gets indexed by search engines and provides a good hint for other people running into this problem :)

Feel free to re-open when you think of something we could do from the Notion side.