Re: Help with debugging a bug in Konqueror

Stefano Crocco <[email protected]> Tue, 14 Jul 2026 09:15:27 +0200
Newsgroups gmane.comp.kde.devel.general
Message-ID <[email protected]>
This is a multi-part message in MIME format.

--nextPartP7BzX-GDRzeLJwKN-LVUnw
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset="utf-8"

On luned=C3=AC 13 luglio 2026 23:46:33 Ora legale dell=E2=80=99Europa centr=
ale Juraj Oravec=20
wrote:
> A small update,
>=20
> I can get both Falkon and Konqueror stuck when opening the combobox on
> this page:
> https://google.github.io/liquidfun/
>=20
> Best regards,
> Juraj
>=20
> On pondelok 13. j=C3=BAla 2026 23:22:46 stredoeur=C3=B3psky letn=C3=BD =
=C4=8Das Juraj Oravec
>=20
> wrote:
> > Hello,
> >=20
> > > Hello to everyone,
> > > for the last few weeks, I've randomly encountered what I assume is a
> > > bug in Konqueror: I'd like to fix it, because it's rather annoying,
> > > but I don't know how to debug it to find its cause.
> > >=20
> > > The issue is that sometimes Konqueror completely freezes: none of
> > > its
> > > windows respond to mouse or keyboard. The only way to go on is to
> > > kill it. It's not a frequent issue: it usually happens once a day or
> > > so. Once it has happened, however, it's likely to happen again in a
> > > short time.
> >=20
> > I run experiencing similar issue with Falkon, where Falkon freezes the
> > whole desktop when I try to open a combobox (<select>) on a website.
> > It also happens randomly and everything is fine after I ssh into the
> > machine and kill Falkon. I did not look into debugging this issue yet
> > as I attributed it to "has to be external thing".
> >=20
> > I am running i3 + picom on top of XOrg. If you are running something
> > else, it could explain the difference on what freezes. After Falkon
> > dies system is fully responsive again.
> >=20
> > I attributed it to Qt or Intel drivers (I have Intel B580 gpu), as
> > they are not perfect yet (the HW video acceleration likes to crash
> > once in a while).

Thanks for this information. I tried the link you provided and indeed, I go=
t a=20
freeze. However, as you said, this freezes the whole desktop, while in the=
=20
other cases (luckily) I always experienced a freeze of Konqueror only. The =
two=20
backtraces look very similar, however, except for the beginning. I attach t=
he=20
relative backtrace.

Do you get the freeze every time on the page you mentioned? I only got it o=
n=20
my desktop machine, which is also the machine where I got the other freezes=
=2E=20
When I tried with my laptop, the page worked correctly (I'm not using the=20
laptop much these days so I can't say whether Konqueror freezes on it too).

My desktop system as ha AMD Radeon RX 6700 XT graphic card: I've had it for=
=20
several years and it has always worked flawlessly, so I think that if the c=
ause=20
is related to the driver, it's something new.

Given that Falkon is also showing this issue, I think the cause is not=20
Konqueror itself but something else. I think I've found out when this issue=
=20
started happening for me: between the last days of May and the first days o=
f=20
June. As soon as I have time, I'll try to look at the log of the packages I=
=20
updated in those days to see  if there's something which could be related t=
o=20
this.

Stefano
--nextPartP7BzX-GDRzeLJwKN-LVUnw
Content-Disposition: attachment;
 filename="backtrace_https_google.github.io_liquidfun.zip"
Content-Transfer-Encoding: base64
Content-Type: application/zip;
 name="backtrace_https_google.github.io_liquidfun.zip"

UEsDBBQDAAAIAFNG7lzAPTP9/xYAAOoUAQBCAAAAMjAyNi0wNy0xNC1jcmFzaF9taXN0ZXJpb3Nv
LWh0dHBzX2dvb2dsZS5naXRodWIuaW9fbGlxdWlkZnVuLmNyYXNo7J17b9s2EMD/76cw1mFIt8Ym
JUqkhHUb1m5dsVezdQ9gGAyJohwhjuRIcprs0+9I2ZZE5SHHSewkNJDEsenj68e7I3mkn304zEUQ
DSgb7C2eojMae7GwbRK5HA32fvrr/QD+cV8MPjl48+28eJ2lqeBlkqWfvPCfPUcD+ASCh/pUaFES
x9YgSQfjcXFe8GA6HfMg5WI6DnJ+ONh7MQjKwWiahC6Rv/mwyIbus+dYE+N6XsAqMUlaijwNppq8
S0VZXVExVqL6SrA1CQJTx5YSZrNsevnHSOtjnksFDiP5scn4OEjSMc+gJmflOIH6BKUYz9Npxo9E
NEyKPFhKnRd5LXkCP/vWEMkM0LPnTicDj6DLMpA91Eeo264sc51IqJY/+O5UpOWbpJgFJT8U+Vv4
nO/P8oyLolDvFYO98jApXlXIRByEMIZeDuJpMCleDYfDKvfTIB+Vx7PRLMvLYCJGkTjdPylHJ2UY
FGLfHWI8xKOPWX60fEmcivz8I2Qp9oucL1PA0xHPcgHFGB0BEWI6OhGyGNGqiGNZtyGfzXyCrGfP
abtqoW1bPKir9lOWzXxfnAm+qIf89Q28kZ+/qkcBJ2GzStXTRbI7reNkmoUB1FHlNzz0KXv2nLVr
FBBCadVZ1ei9pjqhCJgVoMGXB2+V8N9LwIR/eVA2//X9H7JpJPIv94I0S8+Ps3kxSINjAY3MxQvf
PxgfvP19PD4B5lKoav7V4CvfT9KilINqDxIcqo9/dWcNU6qqQnr1V3W3S6G7vXbjCBpHlhq2mt76
uSq37+fztGqqx9E+UTgvRifyN1/VdVEG1UiYOKBoUauRvJCFbtQg6H2enIJy8n0ob14O9oJ88jha
52J6QAknZ5XGcKUZwprt4DFSGla1xrj6zOVGzNLshiCMV5aHT7NU2Jd9cmWGqW6GrZDwphmm0gz/
zUOlwA7mYi4ejBXmy7aI52ClxkFYlMmxiMYfg6QE03V8nKW9LbLLiRMoi7zoRiC+ktTTOrPQchgP
VYHOeCg/ny4/3zWZkEJKwSsTXEuhLFQFgSRVTeIsH0uzdLUk3e7aJMCOq9q63b1tLeW4hFssQFhw
dOsjZDadT2Akwt+ghFocFyMo7egEfqn6nMjiVIrEI9K43kSR3GkFeg1xNthkiHuDTYe4qw3xyGOh
XQ9xgqWnPQF/zvjXj9C/VkI91Vwy3ViCLXIpvpcwqgkLbQstSriAHfzzs/M+orY9DpzOOECyEPU4
kKZulmXTfXAdPqYiv3A4CG4FioEFej0HALScFVBLtVxtO/o0m6XJIYhjXskJivOUj5WaHM+y2WJg
rTDsI93u9C8Rbqt/ZYuMVYtUr/QSS24PG2cjbNyNsSE6NoyFuIkNk+pTOsFGfW5dfXKXNjKYZjAo
8nkvRadpTRZEjlB+luracXEY5CJawhvPU36x0CR7nMrT1kYB55w2nQhqy3lClcSMg62Pg1t3IzZY
pgvZo1umk/RbJH6gy3RfZjOYCCf/gYeQzcv7WvhoLJvdfCIX8igWwZYmchhtooMx3lQHW5oODi3E
nJUOJqCMQAf/+O5X3/8F1r+A4qM/ZkYXG13c0MUBcUgQPipdLEcBIcED1cXdLRMuLGTzW1n0Tldq
oMp5y0vfl1kAHjnQRGpptNJeWrEbK5JbbyQYpdXWhwjnk9FRJPbjHATIZilGR0kGrWCxIWo8XTXI
6DCDBeg0zqolTUo32hvZWgvcOSY7tkOCNasbhDQWtdW1sLS6R1kKyzB5lvu8QA/G5u7SBknAPCdk
lqKfX7k8BlVN5sf7FoA0JCBqaXNrQdiyharZvEym1frY9TP3rli3Uz7qKi2VHM+mUmA0zjPIIhV9
JdKNZvFs41k80liGJQnqNVl2a5Z9MNlHnxqYDcy7CbPrdWC2KWvCTFuKuTg0LBuWd5RlPRpSVok2
WWYrlgHkMSzgGJgNzDsKM+3AbFO3CbNXw1zmMBM5MTAbmHcUZleHmYTUacBsIQOzgbmnxG3DrIfA
MBeHpAkzNjAbmHtK3DbMRIfZ8UK7CbNjYDYw95S4bZjtDsxYFqKG2W0sZviTKD81MBuYdxRmS4eZ
eCFuwtxemZtMDcuG5R1lWd/+c2kcxw2WbRn4WARpFGZn42TGZYkeDM2bB91YRBHcP+YmxkIIx1Ex
5ioWJi19//eq/d69f/0DPJvKo5K/zVOQdxEkB6X7lwi/SydA0WvYQVa5LImuHrj6Y6lcvv76a5DT
YHPZjcKOUZ2gg5rDBLUVLNlMxupk+SAVHwd7xX+vLglAg1bch+1wCHqZcL6PJcR4PLOgHMjFttoU
X7yzv3xRVqgoI/7FF/un1T/zGfwzgpxglXfIue/o0b+xjUIWUUeWTG6w+/73yVS8D8rD+tle+w3Z
0kX52TrtuRoAqDMA2vvfxGoo86eDfkSjUGk2qXVJT/ZtzC0qWN1z76tILd//C6R8n+XfnSXlX0l5
+AGMCujJd6A196CuLwfw6/OXiw/JN9+IaRm8qPp1jV597nTKE4Te1eXZk3nfICtXz8qOSSOrS0JS
vg340QRsRBr9JoKZ1AQVfT8HyZoKgWr5eyEPrs+/yu17sHl7p1kSfb5WlluO0nc8fay6cRw1x6o0
VovQIjjW87vIT5MnM2KFoK6SIKS1WsPPAnYiN0Zhzc7PMEZA4b+fH8++k8JW40X9V8Vd7mmDdS2Q
VsNURT0LYmObIt2Y1QnCyLZdj11ozJYccCQaEjRWHQZPonYWXiuLyHaIEzUSaNFrsSccjLlKcFoG
4VQM4Ehv1V5q+SVJJ6BfRB6Lssw+BMURWHg4ZLdOq2Cs1wlb7RJZ7W4jPEKNIV8IMFLAzPh4eSHD
kkpwQRbv/Vy9BZoXXvw1fQfeyHpqB9saOtTC6HJ0Kk+n857vAzRiAsF/62kgTNq5ux789GuBSi+8
Bp8sh3KJXNqhRomgRZaFBdXxcrAJ3thplxKHHEfLUqpMqrjfuml+yriKlr6BJ/Mcu+3cGCN4ZYOX
9V5lVue/ZsvT1miQccweXsC5lhzWkIPkAzqxBbnXqQ7it14dCzVHP7cdQb3WWLM6g5HwdgJtMFLX
4bguZw2eMkNc3E7BV7aQ6baQCOY0bSFp2cLvQcLkwdjCXVqGUK4VC0Xdta9BQCJH659BnkhTUNnH
9fSofu43pBGqljrkiYzxRJSyyv0O/krvM8ZU0XeJ3/daSv0l+yi93bXKWRla7VGPgxpIPSwChkNk
N4GU+xUrAwkW8+HctPK0XTNmtV0zLYEVhs7FrtmSAguTy10zwqVr5rRdMz2BhcQFrln7gVsJcKcM
3LhSxpVK1nSlPM+LdN/j5lN2TO99yo7ZJlN27G06Zdfji0jYXl8mtD1lh2nU9MHYhafmpsjOE8Rt
m4NOAqupabvrVNRCrnuRn/ybmCQF/CMiOX3+PZvnHN5/k0SLVTv56p7+oWZScCrSIlDX9K03SFhf
H8fp0KwtFsvQz9eHeXYsxu9+fWrXRTxEL2f5oJgGXawXD0wYAjfiYqyXHEQobHs5ehVhhmg17Os8
LKeL8n9I+FEBzvm7SZrloAF/hSOFeRKt6U54WoZ2HEV2neFPwX/nkIfvw6/1BGOkVxXDSy1vq5OA
ad5WJ0HT4+u6Qi6JbftmzkjlFMhtKjnJOIIXVBv/KMRMvSngWGb0XRr9Gr8/BOF7N8lBffJlu2HB
0/hHGcXBcAamdYj+XaONVxqG6BomaC9xO8hM6x+MvXwM03q7AySNeRNIuT/6szjO8vN3KRwWNzDu
IIzXdbKldzIUKWx0skvNwdnb6GcT0nTtlHPjkCYHd2CmcdCEmZmDs4blfhK3zTLSWWaw99Zk2TMH
Zw3MPSVuGWaih+9Y2logNWcNDcx9JW4bZqbDrC0FUnPW0MDcV+K2YaY6zNqqE7UMzAbmnhK3DbOr
w6wtZlDbLKHeCs13vWr1SJZQiaMDqS2hUhOqZ4C8TyCJDqS2QkYdA6QB8h6BtHUgtWUuKq8HSNKs
TOLzsUwnns5JvJscQrVxEAYOuza07F3VpL+pFq16YBlMePMot/YZvMAmzHKvL8pbUbZKs/eivqR5
ndzdLnNBO3DjugTsugTeFQm6J4cQgyc8ujhgYgk7c6446ePAXysKWTdgoo7CdbHQsiB1Icnir9VK
4GgHMeTMpE6gBUNeKIE2C8llNZvtsAg+XDaQagemFdLrqSD0DUpsa0uHtBF4lcqAsbcP57shnpLF
uq6jcaejtWU1Vnf068NkGkGY3YPp6I1NwUOMsFtqDxy1lYPbScDsi88RLDmACP3LI+wQueKIZ53F
Lh3xrOoUmXMJ5lxCsua5BHPE8/piWEgfa4RpRzz1BFce8XQcT0Qxatzscqkzu7BMt1URu6fxRLrx
tLRlfM/M63feS3IdBNcugS/ugMWMmN21mc0Hpg2b2X/GbXsdVNprkgxJPys7nmVFAlcDfYCbdv4y
qOwYKn06mukdjdu7IUzuU/8Jhw2y18GsnOfiwwO64Mt0dN3R2h6uiLWLrBgxe7i30c9mD/fu93Bt
twNze72HOea+WANzT4nbhtnpmOD2dhtzzX2xhuV+ErfNMtFZRu2dOuZphyuwYdmwvJss25qTwduB
YjZy1dTov8Y0+PCJ0uwS2qFZyeuPtJofBSi6cn70QcqUkyR97+Emq6atqZMFXynuuUJcuZxCsUcu
XU6xuICv7w4bEvrfHGFbHdZaPoCN5L7WL6KUlyirC+PM9Vi9kNratla17x6i0ENXXY8VYs++ZIlu
iYF3xfVY8tv1u9djdbIgeHe2tRZ1YmZby2xrJWtua5nrtjZ0abBuZtqBdDYyO0C346Df9WrvI4ns
tJEGJIvh0QASq32mgB+KKtn422n2YIB8yo6PQx12pePjuDG/2PFZciCucnzYFfE8dRmQu0OOj6qT
cXyM43N9bsbxuV3Hx/I6dqa1+wkdau4ZfSiOj+q8SL9ntJPg8d4zajGNZop441u5Hdd1jRu/8zTf
SyCXpYd9uCFyRBMValDZeVQe0YzPcnUgA+ZETSCZAdIAeY9AOh0gkcObQJo1MQPkfQJJdCA95oQN
IKm549kAeZ9A2h0gkRM0gcQGSAPkPQJp6UAy5nhNIC0DpAHyHoHEOpCt+wcc19wpZoC8VyBRB0ga
N5d9zJ1iBsj7BBJ7OpCtQw62azNmzp/dBpAmNPza7cSNQ8NxZwNmcZK+ptkzB9AMzT0lbpvm7h6R
8l5rmj1kTqAZmPtJ3DbM+v4S4+0QV2bJxYEf3yS54HBk51yGDz2hsxSYOrZCuP91kcJzqcChwnYy
PoZwIwk+jKZynEB9IOJrPE+lAymiYVLkwcWkwM++NUQyA7TCuc5AnmS4LAPpTPcR6rYry1wnEqrl
D1SA45sE3N0SQknzt/A5359V8RzqvWKwVx4mxauKGcLgq1phf/7lIJ4Gk+LVcDiscj8N8lF5PBvN
sryEKLNRJE73T8rRSSld/30YBHiIR/KMzvIlAV/Vef4RshT7Rc6XKeDpiIMTDcUYHQERYjo6EbIY
0aqIY1m3IZ/NfIKszqgK5eVLQV21KvhMnAm+qIf89Q28kZ+/qocBI3GzStXTRbI7reNkmoUB1FHl
Nzz0KeuM9IAQSqvOqoZvqzpfZjNQ28l/IhqANvrqzgpaaSdIr/6q5ncpNL/XLqyc8blRo7Dv8+RU
XYqqlBzMsvIJtLsKQ+WCodhC91RkGInJWYWNq76adRNljPGmyljfW+Xtq80dm0hl/BZmojNII1VS
kj6cdYiNlfFDjO+uTp0xx3XIFfHdMbWxFV0csrQEIbwqvptDfHcQ8iviuz3Q08jbofhuVScT323i
u6/PzcR33258NyYdQ6MWZGpDQ5H+TYjm5gkzh93ROWzn5onFl8fVNGOdZsvQbGjeTZr1aA3U/l5P
B5ZkdJptQ7OheTdpxjrNum5mtk4zMTQbmneTZqTTrPvNjOg0O4ZmQ/NO0uzpMOurjczRYXYNzAbm
nYSZ6TB7dvP2QZchpsNMDcwG5p2EmerxUq1wVI8RyzHRfwbmnhK3DLOrw7wIZa1hdk3wn4G5p8T/
27uSJadhIPorHDkAo9WWUjUHloKi4MBWxdxSstTKuHCWiRNm+Hu0xBNbWTCQTKAqFydy5E6/7ic5
tvU6JyZzWny+oEjkHTLn57V/Zy73s3hiLqcPAW2GRNHmMjtrDM5k7mvxxGSmKZm5EKpD5rPE4Ezm
vhZPTGayQWYkZJvM/KwwOHO5p8UTcxknv5iB5rZAbMVlSqRoUfn/+a/Ev17MigkL1P0NYYEoCM90
jP6dLjzbJ7s563p4K9hRNbWSyyLE03WJ485O58N6Brp0IfEr639hMWUpQ4bKEFozL+naZDA1jFqH
P6KrN20zEgJVTZWB+TB8Q32rZsNiaS3M6+G47j26OmzW2gVC5Nwb37C61eKb91fDMdRqJaCQibVM
MSy9tVF19dnZetHfVHflOUI4EzIQ7KPr+DKqOwaDem00rvRvVs0bxTHFTq1QL+dWaWj2K2WFgsOv
pp9Vy1E5qd2rWrhEj+uLO+11C2FgjaIEJexzuoy7ixu3aX0Q1ttzJtMV81piQ0AH1J+uyzcV1GQw
gIl5PVdj6AK2ec4ycIB9SF5eq3LSfAJCoQKOqkUZLcuL+XV5ceM2I+9lQESoIMkKZtC5pNrgBlKC
JtGdRGAaGa37ATu+IqWNNIDEOEMoWSMNmluFcwgoXyj9rZyMPi+mc3gFVi2rxfoPnwYDWy3r653g
ASRmINza5JaVy3aj218x983ShcS5tzWA2gcwlcM8eXRbTsz09jK+dE0agSVB/vBQnvYVfC81fCjv
oPrkyXu5fffKBnaewMhRPGZnam0Ni/jeD+DlHOpNZxa+/m211M6ED97Ind4n5tKqqobGi1Ai14+z
10q7KKQ2dnRbOXX40e9ZMXOBXbisXNys0lP79JiYcX2f8UCaTPBkYTvonFFYzXAfVpNImzqDgUvp
602ybCb/tNlcvemIx6xhCEuj0a7cbt0bLezN+9FT2Uzn7ZTGuY2gZNE/UJZjw/OQwStd7Evejoz1
TVKfPPQL/AMHd/tZ8sZtNgIswrkjO4fyAKHMZKLpAEO14oIHrn4tzQgWnyCwPoqFfnleMphFMeht
OHitVTSSK9SNaezypYnmurlrmjh8sOJ31vda2dieR8gr4VA8m6OcuViJNFaGqJ6x6gTohEik5Kku
xlAwmuM9QELruftF9g8CEsxfdqIOIIaUwUUL0GAQrrCi6xusDJ9dhu0G7xB6MHAxP5RThwd38BBi
CY2j0qu2voaprMGUjsV/B17zeuOl93H+jaOJ+JmHkA5Gk9EcUY/x3R9hdAD3oHOXlME1A8VydPHN
wFPrry48HpeGu3Hlzu8OAhHPUNIMh31LEEjkAdAugCLPCxsAXI2rN8syQvgV9Y7ibtzVcphk3DnM
usPeylzYwKrns1lVRt3hveR8Ml2U9sfwGqoZzLfr5f2ErqF0RNgE9lAka8aQWkMIiCnJ/cTAu/UN
MC6QCJC9yLAFu8H7dnXDy91ZbrCdfkClNR18O8WLMWYOb9bFS8BSvR1vDRMTBNxrpJv5DSD/CXic
+yGXr4EkfA14PkzrBURUdSeBTdaGix8zuHQtoxaqSayQoHJ+IlwypE1sVBjJ8njTs14EOPFPYJpS
I48e1/fOKwwKHd/5nXVECBMOgEzqrihhaavuSnNgn3IrFG0UicH2kEViKD5CkRhKDlAkZpVRSQQ5
6o253skNRWIo/asiMdZSB4gZ87C35PYViaEsRcQE2T5NRlxH827v3MB47nzlreoUzmOuDTftWhA0
SzqYXECnQ97tQK2gstMhUdkjxAqIT22cj3oYH4CFpzdugOx57ChTO9wUqZ39JhhKfZWGt3z9CVBL
AQI/AxQDAAAIAFNG7lzAPTP9/xYAAOoUAQBCACQAAAAAAAAAIICkgQAAAAAyMDI2LTA3LTE0LWNy
YXNoX21pc3Rlcmlvc28taHR0cHNfZ29vZ2xlLmdpdGh1Yi5pb19saXF1aWRmdW4uY3Jhc2gKACAA
AAAAAAEAGACAXHATXRPdAYBRBfhcE90BABrCPV0T3QFQSwUGAAAAAAEAAQCUAAAAXxcAAAAA


--nextPartP7BzX-GDRzeLJwKN-LVUnw--