[DragonFlyBSD - Bug #3221] Assertions hit in the mtmagazine.

Tue Feb 4 01:50:11 PST 2020

Issue #3221 has been updated by yellowrabbit2010.

File IMG_20200204_191847_HDR.jpg added

Ok, report.
Acer c720 notebook, USB flash with dd'ed dfly-x86_64-5.6.2_REL.img. Make aux directory /mnt/usr-obj. 
Add new partition (number 3), size = 6G for /usr/src and /usr/obj. 
== /etc/fstab
/dev/part-by-label/DragonFly_v5.6.2.a / ufs rw,noatime 0 1
/dev/serno/1590261180302284762.s3a /mnt/src-obj ufs rw,noatime 1 1
/mnt/src-obj/src /usr/src null rw 0 0
/mnt/src-obj/obj /usr/obj null rw 0 0
==============
I don’t want to make a lot of changes to the reference image, so I don’t configure the network and the like, I just pick up the latest sources in .s3a/src on a big machine:
== in mounted .s3a/src
git clone git://git.dragonflybsd.org/dragonfly.git .
====

Boot C720 from USB
==
>root
cd /usr/src
make buildworld
make buildkernel KERNCONF=X86_64_GENERIC
make installkernel KERNCONF=X86_64_GENERIC
make installworld
make upgrade
reboot 
====

add debug info to dntpd and libc
==
cd /usr/src/usr.sbin
make DEBUG_FLAGS=-g all
make DEBUG_FLAGS=-g install
cd /usr/src/lib/libc
env CFLAGS=-O0 make DEBUG_FLAGS=-g all
env CFLAGS=-O0 make DEBUG_FLAGS=-g install
===

== debug
# gdb -q `which dntpd`
Reading symbols from /usr/sbin/dntpd...done.
(gdb) start
Temporary breakpoint 1 at 0x401c13: file main.c, line 64.
Starting program: /usr/sbin/dntpd
Temporary breakpoint 1, main (ac=1, av=0x7fffffdfd910) at main.c:64
64      {
(gdb) break nmalloc.c:1683
Breakpoint 2 at 0x800510eb2: file /usr/src/lib/libc/../libc/stdlib/nmalloc.c, li
ne 1683.
(gdb) cont
Continuing.
Breakpoint 2, mtmagazine_alloc (zi=4, flags=0)
    at /usr/src/lib/libc/../libc/stdlib/nmalloc.c:1683
1683            if (tp->init < 0)
(gdb) p &(tp->mags[0].prev)
$1 = (struct magazine **) 0x800653508
(gdb) del break 2
(gdb) break __strtok_r
Breakpoint 3 at 0x8004ca303: file /usr/src/lib/libc/../libc/string/strtok.c, lin
e 60.
(gdb) cont
Continuing.
Breakpoint 3, __strtok_r (s=0x7fffffdfd460 "", delim=0x4046d8 " \t\r\n",
    last=0x800653508) at /usr/src/lib/libc/../libc/string/strtok.c:60
60              if (s == NULL && (s = *last) == NULL)
(gdb) p last
$2 = (char ** restrict) 0x800653508
(gdb)
===

See last == 0x800653508 == &(tp->mags[0].prev) ?
I come to the conclusion that I'm looking somewhere wrong. After all, it cannot be that from a clean installation image with an absolute minimum of changes on two computers of different classes an address overlap is obtained only for me.
I clearly make a mistake somewhere since this is not repeated by anyone else:(

----------------------------------------
Bug #3221: Assertions hit in the mtmagazine. 
http://bugs.dragonflybsd.org/issues/3221#change-13851

* Author: yellowrabbit2010
* Status: New
* Priority: Normal
* Assignee: 
* Category: Other
* Target version: 
----------------------------------------

Hello,
Sorry that I can’t figure out the exact sequence when this happens, the process looks random. And I can work in the same gimp for half a day and not encounter this error, and sometimes I can’t even start it.
I can compile the package, in this case textproc/groff:
================
/bin/mkdir -p ./tmac
sed -e "s;[@]PNMTOPS_NOSETPAGE[@];pnmtops;g" \
  ./tmac/www.tmac.in > ./tmac/www.tmac
/bin/mkdir -p `dirname doc/webpage.ps` \
&& LANG=C LC_ALL=C sed -e "s;[@]VERSION[@];1.22.4;" doc/webpage.ms | GROFF_COMMAND_PREFIX= GROFF_BIN_PATH="/usr/obj/dports/textproc/groff/groff-1.22.4" /usr/obj/dports/textproc/groff/groff-1.22.4/groff -I/usr/obj/dports/textproc/groff/groff-1.22.4 -M /usr/obj/dports/textproc/groff/groff-1.22.4/doc -M/usr/obj/dports/textproc/groff/groff-1.22.4/tmac -M/usr/obj/dports/textproc/groff/groff-1.22.4/tmac -F/usr/obj/dports/textproc/groff/groff-1.22.4/font -F/usr/obj/dports/textproc/groff/groff-1.22.4/font -Upet -ww  -Tps -ms -mwww >doc/webpage.ps
assertion: mp->rounds != 0 in mtmagazine_alloc
gmake[2]: *** [Makefile:11742: doc/webpage.ps] Error 1
gmake[2]: Leaving directory '/usr/obj/dports/textproc/groff/groff-1.22.4'
gmake[1]: *** [Makefile:5600: all] Error 2
gmake[1]: Leaving directory '/usr/obj/dports/textproc/groff/groff-1.22.4'
*** Error code 1

Stop.
make: stopped in /usr/dports/textproc/groff
fly#
================

or i can just try to run gimp
================
rabbit at fly /usr/src% gimp
assertion: MAGAZINE_NOTFULL(mp) in mtmagazine_free
gimp: terminated: Terminated
================

I'm at the master branch, commit d0e99d5ddb6a001850be2dff41813e1cad00b5af.

---Files--------------------------------
IMG_20200203_090633_HDR-min.jpg (1.06 MB)
IMG_20200204_191847_HDR.jpg (3.79 MB)

-- 
You have received this notification because you have either subscribed to it, or are involved in it.
To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account