Your message dated Sun, 27 Sep 2026 10:21:33 +0000
with message-id <[email protected]>
and subject line Bug#1149106: fixed in exim4 4.100.1-2
has caused the Debian Bug report #1149106,
regarding exim4-daemon-heavy: Exim4 crashes (SEGV) on 32bit armhf when
delivering to Maildir
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
1149106: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1149106
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: exim4-daemon-heavy
Version: 4.100-1~bpo13+1
Severity: grave
Tags: upstream
Justification: renders package unusable
X-Debbugs-Cc: [email protected], [email protected]
User: [email protected]
Usertags: armhf
Dear Maintainer,
Upgraded my Odroid-HC1 ARM device from Debian 12 -> Debian 13 and Exim
stopped delivering (receiving) email with SEGV:
```
18:09:29 7887 appendfile: mode=600 notify_comsat=0 quota=0 warning=0
18:09:29 7887 directory=/home/vmail/example.com/username/Maildir
format=maildir
18:09:29 7887 message_prefix=null
18:09:29 7887 message_suffix=null
18:09:29 7887 maildir_use_size_file=no
18:09:29 7887 ensuring maildir directories exist in
/home/vmail/example.com/username/Maildir
18:09:29 7887 delivering in maildir format in
/home/vmail/example.com/username/Maildir
18:09:29 7887 try option 'maildir_tag'
18:09:29 7887 LOG: MAIN PANIC
18:09:29 7887 SIGSEGV (deliberate trap)
2026-09-26 18:09:29 1xASkY-000000001wE-0V64 SIGSEGV (deliberate trap)
18:09:29 7884 LOG: MAIN PANIC
18:09:29 7884 failed to read delivery status for [email protected] from
delivery subprocess
18:09:29 7884 LOG: MAIN PANIC
```
Manged to get backtrace with GDB:
```
#1 0x0057d0b4 in string_vformat_trc (g=<optimized out>, g@entry=0x0,
func=func@entry=0x61a23c <__FUNCTION__.2> "appendfile_transport_entry",
line=line@entry=2475, size_limit=size_limit@entry=32768, flags=<optimized out>,
flags@entry=3, format=<optimized out>, format@entry=0x607af8 "%lld.M%luP%d.%s",
ap=..., ap@entry=...) at string.c:1778
length = <optimized out>
slen = <optimized out>
nptr = 0x22c8
item_start = <optimized out>
s = 0x22ce <error: Cannot access memory at address 0x22ce>
newformat = "%d\000\000\000\237\361\276D\360c\000|\000\000"
l_align = 0 '\000'
null = <optimized out>
gp = 0x2184901 ""
L_NORMAL = L_NORMAL
L_SHORT = L_SHORT
L_LONG = L_LONG
L_LONGLONG = L_LONGLONG
L_LONGDOUBLE = L_LONGDOUBLE
L_SIZE = L_SIZE
taint_checked = 1 '\001'
width = -1
precision = -1
initial_off = <optimized out>
lim = 127
need = <optimized out>
fp = 0x607b07 ""
__FUNCTION__ = "string_vformat_trc"
#2 0x0057d826 in string_sprintf_trc (format=format@entry=0x607af8
"%lld.M%luP%d.%s", func=func@entry=0x61a23c <__FUNCTION__.2>
"appendfile_transport_entry", line=<optimized out>) at string.c:747
g = 0x0
flags = 3
ap = {
__ap = 0xbef19ffc
}
__FUNCTION__ = "string_sprintf_trc"
#3 0x0059fc0a in appendfile_transport_entry (tblock=0x212d754, addr=0x217fbcc)
at appendfile.c:2475
basename = <optimized out>
i = 1
check_path = <optimized out>
re = <optimized out>
ob = 0x212d7f4
trname = 0x213eeb8 "dovecot_transport"
statbuf = {
st_dev = 44826983,
st_ino = 4295000484,
st_mode = 0,
st_nlink = 0,
st_uid = 0,
st_gid = 0,
st_rdev = 67084,
st_size = 4096,
st_blksize = 136,
st_blocks = 1790424337,
st_atim = {
tv_sec = -5298298788879578396,
tv_nsec = 0
},
st_mtim = {
tv_sec = -5298298791948976128,
tv_nsec = -1225641240
},
st_ctim = {
tv_sec = -5387405881438633984,
tv_nsec = 35001544
}
}
fdname = <optimized out>
deliver_dir = <optimized out>
filename = <optimized out>
hitchname = 0x0
dataname = <optimized out>
lockname = 0x0
newname = <optimized out>
nametag = 0x0
cr = 0x60f484 ""
filecount_msg = 0x60f484 ""
path = <optimized out>
times = {
actime = -5264410814043121969,
modtime = 2053
}
msg_tv = {
tv_sec = 1790435780,
tv_usec = 915461
}
disable_quota = <optimized out>
isdirectory = <optimized out>
isfifo = 0 '\000'
wait_for_tick = 0 '\000'
uid = 993
gid = 993
mbformat = 3
mode = <optimized out>
saved_size = -1
mailbox_size = <optimized out>
mailbox_filecount = -1
hd = -1
fd = <optimized out>
yield = 2
i = <optimized out>
save_fd = 0
mbx_lockfd = -1
mbx_lockname = "\004\000\000\000\004\000\000\000T\327\022\002", '\000'
<repeats 16 times>, "\341\003\000\000\006\000\000\000\020\000\000"
temp_file = 0x0
maildirsize_fd = <optimized out>
maildir_save_errno = <optimized out>
__FUNCTION__ = "appendfile_transport_entry"
#4 0x00527b64 in deliver_local (addr=addr@entry=0x217fbcc,
shadowing=shadowing@entry=0 '\000') at deliver.c:2412
ti = 0x212d63c
ok = <optimized out>
replicate = 1 '\001'
rl = {
rlim_cur = 0,
rlim_max = 0
}
use_initgroups = 0 '\000'
uid = 993
gid = 993
status = 35144964
len = <optimized out>
rc = <optimized out>
pfd = {8, 9}
pid = <optimized out>
working_directory = 0x5d53bc "/"
addr2 = <optimized out>
tp = <optimized out>
trname = 0x213eeb8 "dovecot_transport"
__FUNCTION__ = "deliver_local"
#5 0x005280e4 in do_local_deliveries () at deliver.c:3049
deliver_time = {
tv_sec = 455301678012,
tv_usec = 28132658559057920
}
addr3 = 0x217fbcc
logflags = 1
logchar = <optimized out>
tpt_dummy = 0x0
nextaddr = <optimized out>
delivery_start = {
tv_sec = 1790435780,
tv_usec = 816966
}
addr2 = <optimized out>
tp = 0x212d754
serialize_key = 0x0
trname = <optimized out>
addr = <optimized out>
dbblock = {
dbptr = 0x41,
lockfd = 6544944,
readonly = 0 '\000'
}
dbm_file = <optimized out>
now = <optimized out>
__FUNCTION__ = "do_local_deliveries"
#6 0x0052a9c8 in deliver_message (id=<optimized out>, forced=forced@entry=1
'\001', give_up=give_up@entry=0 '\000') at deliver.c:8446
i = <optimized out>
rc = <optimized out>
final_yield = 0
process_recipients = <optimized out>
now = <optimized out>
addr_last = <optimized out>
filter_message = 0x0
info = <optimized out>
dbblock = {
dbptr = 0x2133ca8,
lockfd = -1,
readonly = 0 '\000'
}
dbm_file = <optimized out>
has_privs = <optimized out>
reset_point = <optimized out>
__FUNCTION__ = "deliver_message"
#7 0x0050c40a in main (argc=<optimized out>, cargv=<optimized out>) at
exim.c:5151
status = 15523
pid = <optimized out>
argv = <optimized out>
arg_receive_timeout = -1
arg_smtp_receive_timeout = -1
arg_error_handling = 0
filter_sfd = -1
filter_ufd = -1
group_count = <optimized out>
i = 3
rv = <optimized out>
list_queue_option = <optimized out>
msg_action = <optimized out>
msg_action_arg = <optimized out>
namelen = <optimized out>
queue_only_reason = 0
rcpt_dsn_flags = <optimized out>
recipients_arg = <optimized out>
sender_address_domain = 0
test_retry_arg = <optimized out>
test_rewrite_arg = <optimized out>
perl_start_option = <optimized out>
original_egid = <optimized out>
admin_only_arg = <optimized out>
arg_queue_only = <optimized out>
bi_option = <optimized out>
checking = <optimized out>
count_queue = <optimized out>
extract_recipients = <optimized out>
flag_G = <optimized out>
flag_n = <optimized out>
forced_delivery = 1 '\001'
f_end_dot = <optimized out>
deliver_give_up = <optimized out>
list_queue = <optimized out>
list_options = <optimized out>
list_config = <optimized out>
local_queue_only = <optimized out>
one_msg_action = <optimized out>
opt_D_used = <optimized out>
queue_only_set = <optimized out>
receiving_message = <optimized out>
sender_ident_set = <optimized out>
session_local_queue_only = <optimized out>
unprivileged = <optimized out>
removed_privilege = 0 '\000'
usage_wanted = <optimized out>
verify_address_mode = <optimized out>
verify_as_sender = <optimized out>
rcpt_verify_quota = <optimized out>
version_printed = <optimized out>
alias_arg = <optimized out>
called_as = <optimized out>
cmdline_syslog_name = <optimized out>
start_queue_run_id = <optimized out>
stop_queue_run_id = <optimized out>
expansion_test_message = <optimized out>
ftest_domain = <optimized out>
ftest_localpart = <optimized out>
ftest_prefix = <optimized out>
ftest_suffix = <optimized out>
malware_test_file = <optimized out>
real_sender_address = <optimized out>
log_oneline = <optimized out>
originator_home = 0x5d53bc "/"
sz = <optimized out>
pw = 0x6807cc <pwcache>
statbuf = {
st_dev = 21,
st_ino = 5,
st_mode = 8576,
st_nlink = 1,
st_uid = 0,
st_gid = 5,
st_rdev = 34818,
st_size = 0,
st_blksize = 1024,
st_blocks = 0,
st_atim = {
tv_sec = 1790435699,
tv_nsec = 0
},
st_mtim = {
tv_sec = 1790435699,
tv_nsec = 0
},
st_ctim = {
tv_sec = 1790433725,
tv_nsec = 319048639
}
}
passed_qr_pid = <optimized out>
passed_qr_pipe = <optimized out>
group_list = <error reading variable group_list (value requires 262144
bytes, which is more than max-value-size)>
info_flag = <optimized out>
info_stdout = <optimized out>
rsopts = {0x5e8a60 "f", 0x60c208 "ff", 0x6077ac "r", 0x5ddaa8 "rf",
0x5ddaac "rff"}
__FUNCTION__ = "main"
r0 0x22ce 8910
r1 0x22c8 8904
r2 0x22ce 8910
r3 0xbef1a014 3203506196
r4 0x6 6
r5 0x607b06 6322950
r6 0x0 0
r7 0xffffffff 4294967295
r8 0xffffffff 4294967295
r9 0x2184901 35145985
r10 0x21848bc 35145916
r11 0x73 115
r12 0xffffffff 4294967295
sp 0xbef19f08 0xbef19f08
lr 0x57d0b5 5755061
pc 0xb67e39ee 0xb67e39ee <__GI_strlen+174>
cpsr 0x20070030 537329712
fpscr 0x80000010 -2147483632
=> 0xb67e39ee <__GI_strlen+174>: ldrd r2, r3, [r1]
```
Looks like issue is that format "%lld.M%luP%d.%s" expects 32bit integer on
32bit armhf while msg_tv.tv_usec is 64bit.
-- Package-specific info:
Exim version 4.100 #2 built 29-Aug-2026 09:06:40
Copyright (c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file,
2007 - 2026
Copyright (c) University of Cambridge, 1995 - 2018
Hints DB:
Using sqlite3
Support for: Content_Scanning Local_Scan Exim_filter Sieve_filter crypteq
Expand_dlfunc iconv() IPv6 PAM Perl GnuTLS move_frozen_messages TLS_resume DANE
DKIM DNSSEC ESMTP_Limits ESMTP_Wellknown Event I18N OCSP PIPECONNECT PRDR PROXY
Queue_Ramp SOCKS SPF SRS TCP_Fast_Open
Lookups (built-in): cdb dbm dbmnz dbmjz dnsdb dsearch ldap ldapdn ldapm
ldapauth iplsearch lsearch nwildlsearch wildlsearch mysql passwd pgsql psl
regdom sqlite spf readsock
Authenticators (built-in): cram_md5 cyrus_sasl dovecot external plaintext spa
tls
Routers (built-in): accept dnslookup ipliteral iplookup manualroute redirect
queryprogram
Transports (built-in): appendfile/maildir/mailstore/mbx autoreply lmtp pipe
smtp
Malware: clamd avast sock cmdline
Fixed never_users: 0
Configure owner: 0:0
Size of off_t:8 ptr:4 long:4 int:4
Configuration file search path is
/etc/exim4/exim4.conf:/var/lib/exim4/config.autogenerated
Configuration file is /var/lib/exim4/config.autogenerated
-- System Information:
Debian Release: 13.7
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security-debug'), (500,
'stable-security'), (500, 'stable-debug'), (500, 'proposed-updates-debug'),
(500, 'stable')
Architecture: armhf (armv7l)
Kernel: Linux 6.12.107+deb13-armmp-lpae (SMP w/8 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages exim4-daemon-heavy depends on:
ii debconf [debconf-2.0] 1.5.91
ii exim4-base 4.100-1~bpo13+1
ii libc6 2.41-12+deb13u4
ii libcrypt1 1:4.4.38-1
ii libgnutls-dane0t64 3.8.9-3+deb13u4
ii libgnutls30t64 3.8.9-3+deb13u4
ii libidn12 1.43-1
ii libidn2-0 2.3.8-2
ii libldap2 2.6.10+dfsg-1
ii libmariadb3 1:11.8.6-0+deb13u1
ii libpam0g 1.7.0-5
ii libpcre2-8-0 10.46-1~deb13u2
ii libperl5.40 5.40.1-6+deb13u1
ii libpq5 17.11-0+deb13u1
ii libsasl2-2 2.1.28+dfsg1-9
ii libspf2-2t64 1.2.10-8.3
ii libsqlite3-0 3.46.1-7+deb13u2
exim4-daemon-heavy recommends no packages.
exim4-daemon-heavy suggests no packages.
-- debconf information excluded
--- End Message ---
--- Begin Message ---
Source: exim4
Source-Version: 4.100.1-2
Done: Andreas Metzler <[email protected]>
We believe that the bug you reported is fixed in the latest version of
exim4, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Andreas Metzler <[email protected]> (supplier of updated exim4 package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sun, 27 Sep 2026 11:50:53 +0200
Source: exim4
Architecture: source
Version: 4.100.1-2
Distribution: unstable
Urgency: high
Maintainer: Exim4 Maintainers <[email protected]>
Changed-By: Andreas Metzler <[email protected]>
Closes: 1149106
Changes:
exim4 (4.100.1-2) unstable; urgency=high
.
* Cherry-pick two fixes from upstream GIT master.
* Fix crash on 32bit platforms when delivering to Maildir. Closes: #1149106
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