Public bug reported:

kmail doesn't start. To exclude a bug in akonadi, I stopped akonadi. To
exclude configuration problems, I removed ~/.config/kmail*. kmail still
doesn't start.

>From the shell all I get is:

$ kmail
Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is 
created.

The last few lines of an strace are:

statx(AT_FDCWD, "/usr/share/icons/hicolor/symbolic/apps", 
AT_STATX_SYNC_AS_STAT, STATX_ALL, {stx_mask=STATX_ALL, stx_attributes=0, 
stx_mode=S_IFDIR|0755, stx_size=4096, ...}) = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x55716ea17600, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x55716ea175b0, FUTEX_WAKE_PRIVATE, 1) = 0
statx(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms", 
AT_STATX_SYNC_AS_STAT, STATX_ALL, {stx_mask=STATX_ALL, stx_attributes=0, 
stx_mode=S_IFDIR|0755, stx_size=4096, ...}) = 0
openat(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms", 
O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 10
fstat(10, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
getdents64(10, /* 6 entries */, 32768)  = 264
getdents64(10, /* 0 entries */, 32768)  = 0
close(10)                               = 0
statx(AT_FDCWD, "/usr/bin/kf5/org.kde.kwindowsystem.platforms", 
AT_STATX_SYNC_AS_STAT, STATX_ALL, 0x7fffad72c8b0) = -1 ENOENT (No such file or 
directory)
statx(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemKWaylandPlugin.so",
 AT_STATX_SYNC_AS_STAT, STATX_ALL, {stx_mask=STATX_ALL, stx_attributes=0, 
stx_mode=S_IFREG|0644, stx_size=81120, ...}) = 0
lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=135168, ...}) 
= 0
lstat("/usr/lib/x86_64-linux-gnu/qt5", {st_mode=S_IFDIR|0755, st_size=4096, 
...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins", {st_mode=S_IFDIR|0755, 
st_size=20480, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5", {st_mode=S_IFDIR|0755, 
st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms",
 {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemKWaylandPlugin.so",
 {st_mode=S_IFREG|0644, st_size=81120, ...}) = 0
openat(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemKWaylandPlugin.so",
 O_RDONLY|O_CLOEXEC) = 10
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=81120, 
...}) = 0
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=81120, 
...}) = 0
mmap(NULL, 81120, PROT_READ, MAP_SHARED, 10, 0) = 0x7f3dd0014000
close(10)                               = 0
munmap(0x7f3dd0014000, 81120)           = 0
statx(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemKWinPrivatePlugin.so",
 AT_STATX_SYNC_AS_STAT, STATX_ALL, {stx_mask=STATX_ALL, stx_attributes=0, 
stx_mode=S_IFREG|0644, stx_size=31336, ...}) = 0
lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=135168, ...}) 
= 0
lstat("/usr/lib/x86_64-linux-gnu/qt5", {st_mode=S_IFDIR|0755, st_size=4096, 
...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins", {st_mode=S_IFDIR|0755, 
st_size=20480, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5", {st_mode=S_IFDIR|0755, 
st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms",
 {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemKWinPrivatePlugin.so",
 {st_mode=S_IFREG|0644, st_size=31336, ...}) = 0
openat(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemKWinPrivatePlugin.so",
 O_RDONLY|O_CLOEXEC) = 10
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=31336, 
...}) = 0
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=31336, 
...}) = 0
mmap(NULL, 31336, PROT_READ, MAP_SHARED, 10, 0) = 0x7f3dd0020000
close(10)                               = 0
munmap(0x7f3dd0020000, 31336)           = 0
statx(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemWaylandPlugin.so",
 AT_STATX_SYNC_AS_STAT, STATX_ALL, {stx_mask=STATX_ALL, stx_attributes=0, 
stx_mode=S_IFREG|0644, stx_size=18864, ...}) = 0
lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=135168, ...}) 
= 0
lstat("/usr/lib/x86_64-linux-gnu/qt5", {st_mode=S_IFDIR|0755, st_size=4096, 
...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins", {st_mode=S_IFDIR|0755, 
st_size=20480, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5", {st_mode=S_IFDIR|0755, 
st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms",
 {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemWaylandPlugin.so",
 {st_mode=S_IFREG|0644, st_size=18864, ...}) = 0
openat(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemWaylandPlugin.so",
 O_RDONLY|O_CLOEXEC) = 10
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=18864, 
...}) = 0
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=18864, 
...}) = 0
mmap(NULL, 18864, PROT_READ, MAP_SHARED, 10, 0) = 0x7f3dd0023000
close(10)                               = 0
munmap(0x7f3dd0023000, 18864)           = 0
statx(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so",
 AT_STATX_SYNC_AS_STAT, STATX_ALL, {stx_mask=STATX_ALL, stx_attributes=0, 
stx_mode=S_IFREG|0644, stx_size=115104, ...}) = 0
lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=135168, ...}) 
= 0
lstat("/usr/lib/x86_64-linux-gnu/qt5", {st_mode=S_IFDIR|0755, st_size=4096, 
...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins", {st_mode=S_IFDIR|0755, 
st_size=20480, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5", {st_mode=S_IFDIR|0755, 
st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms",
 {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so",
 {st_mode=S_IFREG|0644, st_size=115104, ...}) = 0
openat(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so",
 O_RDONLY|O_CLOEXEC) = 10
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=115104, 
...}) = 0
statx(10, "", AT_STATX_SYNC_AS_STAT|AT_EMPTY_PATH, STATX_ALL, 
{stx_mask=STATX_ALL, stx_attributes=0, stx_mode=S_IFREG|0644, stx_size=115104, 
...}) = 0
mmap(NULL, 115104, PROT_READ, MAP_SHARED, 10, 0) = 0x7f3dd000b000
close(10)                               = 0
munmap(0x7f3dd000b000, 115104)          = 0
openat(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so.avx2",
 O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
access("/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so.avx2",
 F_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, 
"/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so",
 O_RDONLY|O_CLOEXEC) = 10
read(10, 
"\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\241\0\0\0\0\0\0"..., 832) = 
832
fstat(10, {st_mode=S_IFREG|0644, st_size=115104, ...}) = 0
mmap(NULL, 117040, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 10, 0) = 0x7f3dd000b000
mprotect(0x7f3dd0013000, 77824, PROT_NONE) = 0
mmap(0x7f3dd0013000, 57344, PROT_READ|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 10, 0x8000) = 0x7f3dd0013000
mmap(0x7f3dd0021000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 10, 
0x16000) = 0x7f3dd0021000
mmap(0x7f3dd0026000, 8192, PROT_READ|PROT_WRITE, 
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 10, 0x1a000) = 0x7f3dd0026000
close(10)                               = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 10
fstat(10, {st_mode=S_IFREG|0644, st_size=136791, ...}) = 0
mmap(NULL, 136791, PROT_READ, MAP_PRIVATE, 10, 0) = 0x7f3dc9207000
close(10)                               = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libxcb-res.so.0", O_RDONLY|O_CLOEXEC) = 
10
read(10, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p \0\0\0\0\0\0"..., 
832) = 832
fstat(10, {st_mode=S_IFREG|0644, st_size=18488, ...}) = 0
mmap(NULL, 20568, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 10, 0) = 0x7f3dd0005000
mmap(0x7f3dd0007000, 4096, PROT_READ|PROT_EXEC, 
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 10, 0x2000) = 0x7f3dd0007000
mmap(0x7f3dd0008000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 10, 
0x3000) = 0x7f3dd0008000
mmap(0x7f3dd0009000, 8192, PROT_READ|PROT_WRITE, 
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 10, 0x3000) = 0x7f3dd0009000
close(10)                               = 0
mprotect(0x7f3dd0009000, 4096, PROT_READ) = 0
mprotect(0x7f3dd0026000, 4096, PROT_READ) = 0
munmap(0x7f3dc9207000, 136791)          = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x55716e9da900, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x55716e9da8b0, FUTEX_WAKE_PRIVATE, 1) = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x7fffad72c860, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x55716e9bf0a0, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x55716e9bf050, FUTEX_WAKE_PRIVATE, 1) = 0
getcwd("/home/bs", 4096)                = 9
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x55716e9f3e00, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x55716e9f3db0, FUTEX_WAKE_PRIVATE, 1) = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x7fffad72c950, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
getpid()                                = 3709
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\230\4\2\0\5\0@\4", iov_len=8}, {iov_base=NULL, 
iov_len=0}, {iov_base="", iov_len=0}], 3) = 8
munmap(0x7f3dd23d4000, 4)               = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cb04) = 0
munmap(0x7f3dd0259000, 16384)           = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72cac0) = 0
ioctl(6, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, 0x7fffad72cb70) = 0
munmap(0x7f3dca44e000, 3063808)         = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cac4) = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72ca80) = 0
munmap(0x7f3dca73a000, 17584128)        = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cb24) = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72cae0) = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cb04) = 0
munmap(0x7f3dd024f000, 40960)           = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72cac0) = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cb04) = 0
munmap(0x7f3dd025d000, 32768)           = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72cac0) = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cb24) = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72c9f0) = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cad4) = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72ca90) = 0
ioctl(6, DRM_IOCTL_I915_GEM_MADVISE, 0x7fffad72cad4) = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72ca90) = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x7fffad72cb80, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
write(7, "\1\v\1\0\1\0\0\0\0\0\0\0\0\0\0\0", 16) = 16
close(7)                                = 0
write(5, "\1\0\0\0\0\0\0\0", 8)         = 8
openat(AT_FDCWD, "/sys/devices/system/cpu/online", O_RDONLY|O_CLOEXEC) = 7
read(7, "0-7\n", 8192)                  = 4
close(7)                                = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x7f3de8835d68, FUTEX_WAKE_PRIVATE, 1) = 1
munmap(0x7f3dd1213000, 1270)            = 0
munmap(0x7f3dd024e000, 1270)            = 0
munmap(0x7f3dd024d000, 306)             = 0
munmap(0x7f3dd00c7000, 306)             = 0
munmap(0x7f3dd00c6000, 488)             = 0
munmap(0x7f3dd00c5000, 488)             = 0
munmap(0x7f3dd00c4000, 16)              = 0
munmap(0x7f3dd00c3000, 16)              = 0
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, 
[{iov_base="6\0\2\0\t\0@\4\206\21\2\0\n\0@\4\224\3\4\0\10\0@\4\6\0@\4\0\0\0\0"...,
 iov_len=116}], 1) = 116
futex(0x55716e659740, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x55716e6596f0, FUTEX_WAKE_PRIVATE, 1) = 0
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, 
revents=POLLIN|POLLOUT}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, 
msg_iov=[{iov_base="\34\0\267\1\220\1\0\0]\1\0\0E\347\321\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
 iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 64
writev(3, [{iov_base=".\0\2\0\3\0@\4", iov_len=8}], 1) = 8
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="<\4\2\0\0\0@\4+\1\1\0", iov_len=12}, {iov_base=NULL, 
iov_len=0}, {iov_base="", iov_len=0}], 3) = 12
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\1\272\1\0\0\0\0\7\0 
\4\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_controllen=0, msg_flags=0}, 0) = 32
munmap(0x7f3dd0265000, 40960)           = 0
ioctl(6, DRM_IOCTL_GEM_CLOSE, 0x7fffad72ca70) = 0
futex(0x55716e690038, FUTEX_WAKE_PRIVATE, 2147483647) = 1
futex(0x55716e68ffe8, FUTEX_WAKE_PRIVATE, 1) = 1
munmap(0x7f3dd00c8000, 1310728)         = 0
close(6)                                = 0
shutdown(3, SHUT_RDWR)                  = 0
close(3)                                = 0
msync(0x7f3dc9229000, 10547304, MS_ASYNC|MS_INVALIDATE) = 0
munmap(0x7f3dc9229000, 10547304)        = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x7fffad72d1a0, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x55716e9a8700, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x55716e9af680, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x55716e9af630, FUTEX_WAKE_PRIVATE, 1) = 0
munmap(0x7f3de99ba000, 16384)           = 0
getpid()                                = 3709
munmap(0x7f3dd117a000, 505760)          = 0
munmap(0x7f3dd23e1000, 24664)           = 0
munmap(0x7f3dd23dc000, 16552)           = 0
munmap(0x7f3dd23d5000, 24904)           = 0
munmap(0x7f3dd113d000, 20584)           = 0
munmap(0x7f3dd1138000, 16472)           = 0
munmap(0x7f3dd0f36000, 2101368)         = 0
exit_group(0)                           = ?
+++ exited with 0 +++

Full strace attached.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: kmail 4:19.04.3-0ubuntu2
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.1
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Nov  1 17:04:59 2019
InstallationDate: Installed on 2019-04-12 (202 days ago)
InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
SourcePackage: kmail
UpgradeStatus: Upgraded to eoan on 2019-10-26 (6 days ago)

** Affects: kmail (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug eoan kmail

** Attachment added: "strace.txt"
   https://bugs.launchpad.net/bugs/1850957/+attachment/5302057/+files/strace.txt

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https://bugs.launchpad.net/bugs/1850957

Title:
  kmail doesn't start

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