Re: emacs-25.3 aborted

[Ludovic Courtès]

Ricardo Wurmus <address@hidden> skribis:

> I can reproduce this on i686.  After installing Emacs with “guix package
> --no-grafts -u emacs”, however, there is no crash.
>
> The crash only happens with the grafted Emacs.

Indeed:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix environment -s i686-linux --ad-hoc emacs --pure -- emacs 
-Q

** (emacs-25-3:10005): WARNING **: Error retrieving accessibility bus address: 
org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not 
provided by any .service files
Fatal error 6: Aborted
Backtrace:
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x81393ec]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8121e63]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x813947c]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e75]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176cce]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176cce]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x817705f]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176c9e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176cce]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x817705f]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176cce]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x817705f]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x81770fd]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x817841e]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e7f]
/gnu/store/d39xg06h35k91syyp7k3lhiprwxii2ii-emacs-25.3/bin/emacs-25.3[0x8176e5d]
...
$ git describe
v0.14.0-234-g583016820
--8<---------------cut here---------------end--------------->8---

The backtrace shows that it crashed during the mark phase:

--8<---------------cut here---------------start------------->8---
#0  0xf7f01df9 in __kernel_vsyscall ()
#1  0xf5fdd1d1 in raise () from 
/gnu/store/kzkgc8avgnanrv3ab2g3g8yj7l4bcavj-glibc-2.25/lib/libpthread.so.0
#2  0x08121e91 in terminate_due_to_signal ()
#3  0x0813947c in emacs_abort ()
#4  0x08176e75 in mark_object ()
#5  0x08176e5d in mark_object ()
#6  0x08176cce in mark_object ()
#7  0x08176e5d in mark_object ()
#8  0x08176c9e in mark_object ()
#9  0x08176e5d in mark_object ()
#10 0x08176e5d in mark_object ()
#11 0x08176cce in mark_object ()
#12 0x0817705f in mark_vectorlike ()
#13 0x08176e5d in mark_object ()

[...]

#167 0x0817748a in Fgarbage_collect ()
#168 0x081bf73a in exec_byte_code ()
#169 0x0818d87b in funcall_lambda ()
#170 0x0818dc39 in Ffuncall ()
#171 0x081bf42d in exec_byte_code ()
#172 0x0818d87b in funcall_lambda ()
--8<---------------cut here---------------end--------------->8---

And indeed --no-grafts doesn’t have this problem.

Could it be that grafting breaks the unexec’d image in subtle ways?

Ludo’.