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xscreensaver: glhanoi segfaults

On my system running /usr/lib/xscreensaver/glhanoi segfaults. Sometimes I get a message aboult malloc(): wrong size or sth like that.

xscreensaver version 5.43-1

I have a geforce 9600 gt with nouveau

Re: xscreensaver: glhanoi segfaults

Reply #1 –
This must be some kind of mesa or xf86-video-nouveau problem, the xscreensaver proggies are very old and extensively tested. Does strace(1) show any additional information?

Re: xscreensaver: glhanoi segfaults

Reply #2 –
I had some things built  with debug symbols for something else so as I was set up for this atm I built xscreensaver likewise and got a bt from the coredump with gdb, & ran it with valgrind if it helps.
Code: [Select]
gdb log of backtrace, cat in terminal to get color display from the included control chars:

#0  ^[[34m0x00007f5137d41f25^[[m in ^[[33mraise^[[m () from /usr/lib/libc.so.6
#1  ^[[34m0x00007f5137d2b897^[[m in ^[[33mabort^[[m () from /usr/lib/libc.so.6
#2  ^[[34m0x00007f5137d85258^[[m in ^[[33m__libc_message^[[m () from /usr/lib/libc.so.6
#3  ^[[34m0x00007f5137d8c77a^[[m in ^[[33mmalloc_printerr^[[m () from /usr/lib/libc.so.6
#4  ^[[34m0x00007f5137d8f6c4^[[m in ^[[33m_int_malloc^[[m () from /usr/lib/libc.so.6
#5  ^[[34m0x00007f5137d91c15^[[m in ^[[33mcalloc^[[m () from /usr/lib/libc.so.6
#6  ^[[34m0x00007f51357a967d^[[m in ^[[33mnv50_miptree_create^[[m (^[[36mpscreen^[[m=0x55f772e4e440, ^[[36mtempl^[[m=0x7ffcb5a6bc20) at ^[[32m../mesa-19.2.3/src/gallium/drivers/n
ouveau/nv50/nv50_miptree.c^[[m:339
#7  ^[[34m0x00007f51357acdbc^[[m in ^[[33mnv50_resource_create^[[m (^[[36mscreen^[[m=<optimized out>, ^[[36mtempl^[[m=<optimized out>) at ^[[32m../mesa-19.2.3/src/gallium/drivers
/nouveau/nv50/nv50_resource.c^[[m:18
#8  ^[[34m0x00007f5135a1a13a^[[m in ^[[33mst_texture_create^[[m (^[[36mst=st@entry^[[m=0x55f772eadea0, ^[[36mtarget^[[m=<optimized out>, ^[[36mformat=format@entry^[[m=PIPE_FORMAT
_R8G8B8A8_UNORM, ^[[36mlast_level=last_level@entry^[[m=0, ^[[m
    ^[[m^[[36mwidth0^[[m=<optimized out>, ^[[36mheight0^[[m=<optimized out>, ^[[36mdepth0^[[m=1, ^[[36mlayers^[[m=1, ^[[36mnr_samples^[[m=0, ^[[36mbind^[[m=10) at ^[[32m../mesa-1
9.2.3/src/mesa/state_tracker/st_texture.c^[[m:100
#9  ^[[34m0x00007f5135a077da^[[m in ^[[33mguess_and_alloc_texture^[[m (^[[36mst=st@entry^[[m=0x55f772eadea0, ^[[36mstObj=stObj@entry^[[m=0x55f772edcdd0, ^[[36mstImage=stImage@ent
ry^[[m=0x55f772ed54e0)^[[m
   ^[[m at ^[[32m../mesa-19.2.3/src/mesa/state_tracker/st_cb_texture.c^[[m:632
#10 ^[[34m0x00007f5135a07ed4^[[m in ^[[33mst_AllocTextureImageBuffer^[[m (^[[36mctx^[[m=0x55f772defaf0, ^[[36mtexImage^[[m=0x55f772ed54e0) at ^[[32m../mesa-19.2.3/src/mesa/state_
tracker/st_cb_texture.c^[[m:689
#11 ^[[34m0x00007f5135a0b341^[[m in ^[[33mst_TexImage^[[m (^[[36mctx^[[m=0x55f772defaf0, ^[[36mdims^[[m=2, ^[[36mtexImage^[[m=0x55f772ed54e0, ^[[36mformat^[[m=6408, ^[[36mtype^[[
m=5121, ^[[36mpixels^[[m=0x55f772ee4010, ^[[36munpack^[[m=0x55f772df9530)^[[m
   ^[[m at ^[[32m../mesa-19.2.3/src/mesa/state_tracker/st_cb_texture.c^[[m:1716
#12 ^[[34m0x00007f51359c5cf2^[[m in ^[[33mteximage^[[m (^[[36mno_error^[[m=false, ^[[36mpixels^[[m=0x55f772ee4010, ^[[36mimageSize^[[m=0, ^[[36mtype^[[m=5121, ^[[36mformat^[[m=64
08, ^[[36mborder^[[m=0, ^[[36mdepth^[[m=<optimized out>, ^[[36mheight^[[m=<optimized out>, ^[[m
    ^[[m^[[36mwidth^[[m=<optimized out>, ^[[36minternalFormat^[[m=6408, ^[[36mlevel^[[m=0, ^[[36mtarget^[[m=3553, ^[[36mtexObj^[[m=0x55f772edcdd0, ^[[36mdims^[[m=2, ^[[36mcompres
sed^[[m=0 '\000', ^[[36mctx^[[m=0x55f772defaf0)^[[m
   ^[[m at ^[[32m../mesa-19.2.3/src/mesa/main/teximage.c^[[m:3141
#13 ^[[33mteximage_err^[[m (^[[36mctx^[[m=0x55f772defaf0, ^[[36mcompressed=compressed@entry^[[m=0 '\000', ^[[36mdims=dims@entry^[[m=2, ^[[36mtarget^[[m=3553, ^[[36mlevel^[[m=0, [
^[[36minternalFormat^[[m=<optimized out>, ^[[36mwidth^[[m=256, ^[[36mheight^[[m=256, ^[[m
    ^[[m^[[36mdepth^[[m=1, ^[[36mborder^[[m=<optimized out>, ^[[36mformat^[[m=6408, ^[[36mtype^[[m=5121, ^[[36mimageSize^[[m=0, ^[[36mpixels^[[m=0x55f772ee4010) at ^[[32m../mesa-
19.2.3/src/mesa/main/teximage.c^[[m:3168
#14 ^[[34m0x00007f51359c77ac^[[m in ^[[33m_mesa_TexImage2D^[[m (^[[36mtarget^[[m=<optimized out>, ^[[36mlevel^[[m=<optimized out>, ^[[36minternalFormat^[[m=<optimized out>, ^[[36
mwidth^[[m=<optimized out>, ^[[36mheight^[[m=<optimized out>, ^[[m
    ^[[m^[[36mborder^[[m=<optimized out>, ^[[36mformat^[[m=6408, ^[[36mtype^[[m=5121, ^[[36mpixels^[[m=0x55f772ee4010) at ^[[32m../mesa-19.2.3/src/mesa/main/teximage.c^[[m:3239
#15 ^[[34m0x000055f7724e1928^[[m in ^[[33mmakeTextures^[[m (^[[36mglhanoi=glhanoi@entry^[[m=0x55f772dec6d0) at ^[[32mglhanoi.c^[[m:1560
#16 ^[[34m0x000055f7724e3917^[[m in ^[[33minit_glhanoi^[[m (^[[36mmi^[[m=0x55f772debe80) at ^[[32mglhanoi.c^[[m:1927
#17 ^[[34m0x000055f7724e5595^[[m in ^[[33mxlockmore_do_init^[[m (^[[36mmi=mi@entry^[[m=0x55f772debe80) at ^[[32mxlockmore.c^[[m:576
#18 ^[[34m0x000055f7724e55b6^[[m in ^[[33mxlockmore_check_init^[[m (^[[36mmi=mi@entry^[[m=0x55f772debe80) at ^[[32mxlockmore.c^[[m:603
#19 ^[[34m0x000055f7724e55db^[[m in ^[[33mxlockmore_event^[[m (^[[36mdpy^[[m=<optimized out>, ^[[36mwindow^[[m=<optimized out>, ^[[36mclosure^[[m=0x55f772debe80, ^[[36mevent^[[m=
0x7ffcb5a6bf90) at ^[[32mxlockmore.c^[[m:679
#20 ^[[34m0x000055f7724e4517^[[m in ^[[33mscreenhack_table_handle_events^[[m (^[[36mdpy^[[m=0x55f772db73d0, ^[[36mft^[[m=0x55f7724fb380 <glhanoi_xscreensaver_function_table>, ^[[
36mwindow^[[m=41943041, ^[[36mclosure^[[m=0x55f772debe80, ^[[m
    ^[[m^[[36mwindow2^[[m=0, ^[[36mclosure2^[[m=0x0) at ^[[32mscreenhack.c^[[m:459
#21 ^[[34m0x000055f7724e4652^[[m in ^[[33musleep_and_process_events^[[m (^[[36mdpy^[[m=0x55f772db73d0, ^[[36mft^[[m=0x55f7724fb380 <glhanoi_xscreensaver_function_table>, ^[[36mwi
ndow^[[m=41943041, ^[[36mfpst^[[m=0x0, ^[[m
    ^[[m^[[36mclosure^[[m=0x55f772debe80, ^[[36mdelay^[[m=0, ^[[36mwindow2^[[m=0, ^[[36mfpst2^[[m=0x0, ^[[36mclosure2^[[m=0x0, ^[[36mdelay2^[[m=0) at ^[[32mscreenhack.c^[[m:526
#22 ^[[34m0x000055f7724e47ce^[[m in ^[[33mrun_screenhack_table^[[m (^[[36mdpy^[[m=0x55f772db73d0, ^[[36mwindow^[[m=41943041, ^[[36mwindow2^[[m=0, ^[[36mft^[[m=0x55f7724fb380 <glh
anoi_xscreensaver_function_table>) at ^[[32mscreenhack.c^[[m:586
#23 ^[[34m0x000055f7724e5147^[[m in ^[[33mmain^[[m (^[[36margc^[[m=<optimized out>, ^[[36margv^[[m=<optimized out>) at ^[[32mscreenhack.c^[[m:987

(deleted ioctl false positive below btw)
$ valgrind --tool=memcheck --fullpath-after=/home/me --num-callers=100 /usr/lib/xscreensaver/glhanoi
==25044== Memcheck, a memory error detector
==25044== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==25044== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==25044== Command: /usr/lib/xscreensaver/glhanoi
==25044== 
==25044== Invalid write of size 4
==25044==    at 0x10F79A: makeTexture (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1448)
==25044==    by 0x10F880: makeTextures (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1550)
==25044==    by 0x111916: init_glhanoi (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1927)
==25044==    by 0x113594: xlockmore_do_init (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:576)
==25044==    by 0x1135B5: xlockmore_check_init (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:603)
==25044==    by 0x1135DA: xlockmore_event (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:679)
==25044==    by 0x112516: screenhack_table_handle_events (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:469)
==25044==    by 0x112651: usleep_and_process_events (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:526)
==25044==    by 0x1127CD: run_screenhack_table (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:586)
==25044==    by 0x113146: main (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:987)
==25044==  Address 0xf46db50 is 0 bytes after a block of size 65,536 alloc'd
==25044==    at 0x483AB65: calloc (/build/valgrind/src/valgrind/coregrind/m_replacemalloc/vg_replace_malloc.c:762)
==25044==    by 0x10F70F: makeTexture (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1433)
==25044==    by 0x10F880: makeTextures (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1550)
==25044==    by 0x111916: init_glhanoi (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1927)
==25044==    by 0x113594: xlockmore_do_init (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:576)
==25044==    by 0x1135B5: xlockmore_check_init (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:603)
==25044==    by 0x1135DA: xlockmore_event (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:679)
==25044==    by 0x112516: screenhack_table_handle_events (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:469)
==25044==    by 0x112651: usleep_and_process_events (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:526)
==25044==    by 0x1127CD: run_screenhack_table (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:586)
==25044==    by 0x113146: main (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:987)
==25044== 
--25044-- VALGRIND INTERNAL ERROR: Valgrind received a signal 7 (SIGBUS) - exiting
--25044-- si_code=128;  Faulting address: 0x0;  sp: 0x1003310e10

valgrind: the 'impossible' happened:
   Killed by fatal signal

host stacktrace:
==25044==    at 0x58050DBB: get_bszB_as_is (/build/valgrind/src/valgrind/coregrind/m_mallocfree.c:303)
==25044==    by 0x58050DBB: get_bszB (/build/valgrind/src/valgrind/coregrind/m_mallocfree.c:315)
==25044==    by 0x58050DBB: vgPlain_arena_malloc (/build/valgrind/src/valgrind/coregrind/m_mallocfree.c:1799)
==25044==    by 0x580059C4: vgMemCheck_new_block (/build/valgrind/src/valgrind/memcheck/mc_malloc_wrappers.c:372)
==25044==    by 0x5800614A: vgMemCheck_calloc (/build/valgrind/src/valgrind/memcheck/mc_malloc_wrappers.c:448)
==25044==    by 0x580A4ECA: do_client_request (/build/valgrind/src/valgrind/coregrind/m_scheduler/scheduler.c:1966)
==25044==    by 0x580A4ECA: vgPlain_scheduler (/build/valgrind/src/valgrind/coregrind/m_scheduler/scheduler.c:1521)
==25044==    by 0x580F3550: thread_wrapper (/build/valgrind/src/valgrind/coregrind/m_syswrap/syswrap-linux.c:103)
==25044==    by 0x580F3550: run_a_thread_NORETURN (/build/valgrind/src/valgrind/coregrind/m_syswrap/syswrap-linux.c:156)

sched status:
  running_tid=1

Thread 1: status = VgTs_Runnable (lwpid 25044)
==25044==    at 0x483AB65: calloc (/build/valgrind/src/valgrind/coregrind/m_replacemalloc/vg_replace_malloc.c:762)
==25044==    by 0x69AC386: st_NewTextureImage (20mesa/src/build/../mesa-19.2.3/src/mesa/state_tracker/st_cb_texture.c:139)
==25044==    by 0x6968CE2: _mesa_get_tex_image (20mesa/src/build/../mesa-19.2.3/src/mesa/main/teximage.c:396)
==25044==    by 0x696C8F8: teximage (20mesa/src/build/../mesa-19.2.3/src/mesa/main/teximage.c:3122)
==25044==    by 0x696C8F8: teximage_err (20mesa/src/build/../mesa-19.2.3/src/mesa/main/teximage.c:3168)
==25044==    by 0x696E7AB: _mesa_TexImage2D (20mesa/src/build/../mesa-19.2.3/src/mesa/main/teximage.c:3239)
==25044==    by 0x10F927: makeTextures (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1560)
==25044==    by 0x111916: init_glhanoi (/xscreensaver/build/src/xscreensaver-5.43/hacks/glx/glhanoi.c:1927)
==25044==    by 0x113594: xlockmore_do_init (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:576)
==25044==    by 0x1135B5: xlockmore_check_init (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:603)
==25044==    by 0x1135DA: xlockmore_event (/xscreensaver/build/src/xscreensaver-5.43/hacks/xlockmore.c:679)
==25044==    by 0x112516: screenhack_table_handle_events (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:469)
==25044==    by 0x112651: usleep_and_process_events (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:526)
==25044==    by 0x1127CD: run_screenhack_table (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:586)
==25044==    by 0x113146: main (/xscreensaver/build/src/xscreensaver-5.43/hacks/screenhack.c:987)
client stack range: [0x1FFEFF6000 0x1FFF000FFF] client SP: 0x1FFEFFFA80
valgrind stack range: [0x1003211000 0x1003310FFF] top usage: 13472 of 1048576

Thread 2: status = VgTs_WaitSys syscall 202 (lwpid 25045)
==25044==    at 0x4976C45: pthread_cond_wait@@GLIBC_2.3.2 (in /usr/lib/libpthread-2.30.so)
==25044==    by 0x6C9BF8D: cnd_wait (20mesa/src/build/../mesa-19.2.3/include/c11/threads_posix.h:155)
==25044==    by 0x6C9BF8D: util_queue_thread_func (20mesa/src/build/../mesa-19.2.3/src/util/u_queue.c:272)
==25044==    by 0x6C9BA83: impl_thrd_routine (20mesa/src/build/../mesa-19.2.3/include/c11/threads_posix.h:87)
==25044==    by 0x49704CE: start_thread (in /usr/lib/libpthread-2.30.so)
==25044==    by 0x4DAD2D2: clone (in /usr/lib/libc-2.30.so)
client stack range: [0xEBC8000 0xF3C6FFF] client SP: 0xF3C6CB0
valgrind stack range: [0x1006F53000 0x1007052FFF] top usage: 2936 of 1048576


Note: see also the FAQ in the source distribution.
It contains workarounds to several common problems.
In particular, if Valgrind aborted or crashed after
identifying problems in your program, there's a good chance
that fixing those problems will prevent Valgrind aborting or
crashing, especially if it happened in m_mallocfree.c.

If that doesn't help, please report this bug to: www.valgrind.org

In the bug report, send all the above text, the valgrind
version, and what OS and version you are using.  Thanks.

Re: xscreensaver: glhanoi segfaults

Reply #3 –
The strace doesn't look too interesting to me.
It ends with
Code: [Select]
ioctl(6, DRM_IOCTL_GEM_OPEN, 0x7ffe84cabf20) = 0
ioctl(6, DRM_IOCTL_NOUVEAU_GEM_INFO, 0x7ffe84cabeb0) = 0
ioctl(6, DRM_IOCTL_NOUVEAU_GEM_NEW, 0x7ffe84cabef0) = 0
futex(0x7f146ff3c068, FUTEX_WAKE_PRIVATE, 2147483647) = 0
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\\\7\5\0 \0\0\0\5\0\0\0black\0\0\0", iov_len=20}, {iov_base=NULL, iov_len=0}, {iov_base="", iov_len=0}], 3) = 20
poll([{fd=3, events=POLLIN}], 1, -1)    = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\1\0\221\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_contro>
brk(0x56157273a000)                     = 0x56157273a000
brk(0x56157275c000)                     = 0x56157275c000
brk(0x56157277f000)                     = 0x56157277f000
getpid()                                = 5262
--- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=NULL} ---
+++ killed by SIGSEGV +++
Has someone not a problem with glhanoi?

Re: xscreensaver: glhanoi segfaults

Reply #4 –
glhanoi of xscreensaver-5.44-1 works.

the only change (in the arch repo) seems to be a systemd dependency...

In the artix repo I can't see any changes, because the repo is just a few hours old, i. e. it has no history, but it differs from arch. hmm...
artix
arch

Re: xscreensaver: glhanoi segfaults

Reply #5 –
Quote from: castilma – on
In the artix repo I can't see any changes, because the repo is just a few hours old, i. e. it has no history, but it differs from arch. hmm...

Yeah it was only recently imported into the repos. It's probably possible to build this against elogind instead of systemd however instead of disabling it all together. Dunno, would need testing.
 

Re: xscreensaver: glhanoi segfaults

Reply #6 –
Does it work as intended for you guys, or do I need to add elogind?