33.9.0 segfaults at every scroll event Topic is solved

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L29Ah
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33.9.0 segfaults at every scroll event

Post by L29Ah » 2025-09-23, 13:24

Load https://www.palemoon.org/releasenotes.shtml and press spacebar or move the mouse wheel. Something similar will show up in your core dump:
(gdb) bt
#0 0x00007fe7cf0a2c8c in __pthread_kill_implementation () at /lib64/libc.so.6
#1 0x00007fe7cf04a976 in raise () at /lib64/libc.so.6
#2 0x00007fe7cc0657b5 in nsProfileLock::FatalSignalHandler (signo=11, info=0x7fff8deb1170, context=0x7fff8deb1040) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/toolkit/profile/nsProfileLock.cpp:177
#3 0x00007fe7cf04aaa0 in <signal handler called> () at /lib64/libc.so.6
#4 0x00007fe7c984c4e1 in nsILoadInfo::GetSkipContentSniffing (this=0x0) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/o/dist/include/nsILoadInfo.h:131
#5 NS_SniffContent
(aSnifferType=aSnifferType@entry=0x7fe7cd564446 "net-content-sniffers", aRequest=aRequest@entry=0x7fe77ce37270, aData=0x7fe78ad37000 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n", '\345' <repeats 160 times>, <incomplete sequence \345>..., aLength=39, aSniffedType=...)
at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/netwerk/base/nsNetUtil.cpp:2158
#6 0x00007fe7c9820162 in CallTypeSniffers (aClosure=0x7fe77ce37270, aData=<optimized out>, aCount=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/netwerk/base/nsBaseChannel.cpp:752
#7 0x00007fe7c982edc7 in CallPeekFunc
(aInStream=aInStream@entry=0x7fe77ce47580, aClosure=aClosure@entry=0x7fff8deb1ee0, aFromSegment=aFromSegment@entry=0x7fe78ad37000 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n", '\345' <repeats 160 times>, <incomplete sequence \345>..., aToOffset=<optimized out>, aCount=aCount@entry=39, aWriteCount=aWriteCount@entry=0x7fff8deb1e3c) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/netwerk/base/nsInputStreamPump.cpp:94
#8 0x00007fe7c97879f9 in nsPipeInputStream::ReadSegments (this=0x7fe77ce47580, aWriter=0x7fe7c982edb0 <CallPeekFunc(nsIInputStream*, void*, char const*, uint32_t, uint32_t, uint32_t*)>, aClosure=0x7fff8deb1ee0, aCount=32768, aReadCount=0x7fff8deb1ed0)
at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/xpcom/io/nsPipe3.cpp:435
#9 0x00007fe7c983b5de in nsInputStreamPump::PeekStream (this=0x7fe76d7f91f0, callback=callback@entry=0x7fe7c9820100 <CallTypeSniffers(void*, uint8_t const*, uint32_t)>, closure=closure@entry=0x7fe77ce37270)
at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/o/dist/include/nsCOMPtr.h:739
#10 0x00007fe7c9820657 in nsBaseChannel::OnStartRequest (this=0x7fe77ce37230, request=<optimized out>, ctxt=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/o/dist/include/mozilla/RefPtr.h:275
#11 0x00007fe7c983b9f1 in nsInputStreamPump::OnStateStart (this=this@entry=0x7fe76d7f91f0) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/netwerk/base/nsInputStreamPump.cpp:526
#12 0x00007fe7c983d1ec in nsInputStreamPump::OnInputStreamReady (this=0x7fe76d7f91f0, stream=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/netwerk/base/nsInputStreamPump.cpp:428
#13 0x00007fe7c978ac00 in nsInputStreamReadyEvent::Run (this=0x7fe76de75b80) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/xpcom/io/nsStreamUtils.cpp:94
#14 0x00007fe7c97a063c in nsThread::ProcessNextEvent (this=0x7fe7cee836a0, aMayWait=false, aResult=0x7fff8deb20a7) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/o/dist/include/nsCOMPtr.h:739
#15 nsThread::ProcessNextEvent (this=0x7fe7cee836a0, aMayWait=false, aResult=0x7fff8deb20a7) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/xpcom/threads/nsThread.cpp:1076
#16 0x00007fe7c97cea8c in NS_ProcessNextEvent (aThread=<optimized out>, aMayWait=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/xpcom/glue/nsThreadUtils.cpp:355
#17 0x00007fe7c9c68f6a in mozilla::ipc::MessagePump::Run (this=0x7fe7ceed7980, aDelegate=0x7fe7cee874e0) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/ipc/glue/MessagePump.cpp:95
#18 0x00007fe7c9c1297a in MessageLoop::RunInternal (this=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/o/dist/include/mozilla/RefPtr.h:275
#19 MessageLoop::RunHandler (this=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/ipc/chromium/src/base/message_loop.cc:221
#20 MessageLoop::Run (this=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/ipc/chromium/src/base/message_loop.cc:201
#21 0x00007fe7cb86c7ec in nsBaseAppShell::Run (this=0x7fe7ba1405e0) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/widget/nsBaseAppShell.cpp:153
#22 0x00007fe7cc04afee in nsAppStartup::Run (this=0x7fe7ba161ab0) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/toolkit/components/startup/nsAppStartup.cpp:282
#23 0x00007fe7cc070925 in XREMain::XRE_mainRun (this=this@entry=0x7fff8deb2340) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/toolkit/xre/nsAppRunner.cpp:3792
#24 0x00007fe7cc07131c in XREMain::XRE_main (this=this@entry=0x7fff8deb2340, argc=argc@entry=1, argv=argv@entry=0x7fff8deb37c8, aAppData=aAppData@entry=0x7fff8deb25b0) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/toolkit/xre/nsAppRunner.cpp:3896
#25 0x00007fe7cc0715fb in XRE_main (argc=1, argv=0x7fff8deb37c8, aAppData=0x7fff8deb25b0, aFlags=<optimized out>) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/platform/toolkit/xre/nsAppRunner.cpp:3978
#26 0x0000563ccbda899f in do_main (argc=<optimized out>, argc@entry=1, argv=argv@entry=0x7fff8deb37c8, envp=envp@entry=0x7fff8deb37d8, xreDirectory=0x7fe7cee8d6c0) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/palemoon/app/nsBrowserApp.cpp:253
#27 0x0000563ccbda8128 in main (argc=1, argv=0x7fff8deb37c8, envp=0x7fff8deb37d8) at /var/tmp/portage/www-client/palemoon-33.9.0/work/palemoon-33.9.0/palemoon/app/nsBrowserApp.cpp:377
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Re: 33.9.0 segfaults at every scroll event

Post by Night Wing » 2025-09-23, 13:49

I clicked on your link and I took me to the page with the release notes for Pale Moon (38.9.0). I moved the mouse wheel on my mouse and this started the scrolling down the page in incremental steps. No problems. Never got the gibberish that you got.

I then tapped my space bar and the scrolling jumped a few spaces, but that is what I consider normal. But I never use my spacebar when I want to scroll.

At this time I am using 64 bit linux Pale Moon 33.9.0 (GTK2) running in 64 bit MX Linux 23.6 (Libretto) Xfce.
Last edited by Night Wing on 2025-09-23, 14:46, edited 1 time in total.
MX Linux 25 (Xfinity) Xfce w/Pale Moon, Waterfox, Firefox
Linux Debian 13.1 (Trixie) Xfce w/Pale Moon, Waterfox, Firefox
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Falna
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Re: 33.9.0 segfaults at every scroll event

Post by Falna » 2025-09-23, 14:39

No problems here either, with space bar or scroll wheel on Windows.

Forked extensions :
● Add-ons Inspector ● Auto Text Link ● Copy As Plain Text ● Copy Hyperlink Text ● FireFTP button replacement ● gSearch Bar ● Navigation Bar Enhancer ● New Tab Links ● Number Tabs ● Print Preview Button and Keyboard Shortcut 2 ● Scrollbar Search Marker ● Simple Marker ● Tabs To Portfolio ● Update Alert ● Web Developer's Toolbox ● Zap Anything

Hint: If you expect a reply to your PM, allow replies...
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Lucio Chiappetti
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Re: 33.9.0 segfaults at every scroll event

Post by Lucio Chiappetti » 2025-09-23, 14:52

Normal here too, on linux
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Re: 33.9.0 segfaults at every scroll event

Post by Moonchild » 2025-09-23, 19:36

OK, there seems to be some subtle issue with the content sniffer code that was touched here. Thanks for the stack, it immediately pointed to the problem area.
I don't know why it triggers for you and nobody else, but I'll consider backing out the changes for a point release as there are clearly some stability and usability issues.
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Re: 33.9.0 segfaults at every scroll event

Post by Bababo26 » 2025-09-23, 21:18

Moonchild wrote: ↑
2025-09-23, 19:36
 OK, there seems to be some subtle issue with the content sniffer code that was touched here. Thanks for the stack, it immediately pointed to the problem area.
I don't know why it triggers for you and nobody else, but I'll consider backing out the changes for a point release as there are clearly some stability and usability issues.
From the source paths (/var/tmp/portage/www-client/palemoon-33.9.0/....) in the stack trace this is a gentoo build so the compiler (most likely gcc 14) other stuff is going to be different from what I assume would be the binary release the other posters are using.
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Re: 33.9.0 segfaults at every scroll event

Post by Moonchild » 2025-09-23, 22:48

Oh right, I missed that detail.
So it's a build from source. well at least that makes it less critical.
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Re: 33.9.0 segfaults at every scroll event

Post by feriman » 2025-09-24, 15:27

Bababo26 wrote: ↑
2025-09-23, 21:18
Moonchild wrote: ↑
2025-09-23, 19:36
 OK, there seems to be some subtle issue with the content sniffer code that was touched here. Thanks for the stack, it immediately pointed to the problem area.
I don't know why it triggers for you and nobody else, but I'll consider backing out the changes for a point release as there are clearly some stability and usability issues.
From the source paths (/var/tmp/portage/www-client/palemoon-33.9.0/....) in the stack trace this is a gentoo build so the compiler (most likely gcc 14) other stuff is going to be different from what I assume would be the binary release the other posters are using.
I built =www-client/palemoon-33.9.0 in Gentoo by =sys-devel/gcc-13.2.0 and I have no such problem. Maybe this information would be useful.
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Re: 33.9.0 segfaults at every scroll event

Post by Moonchild » 2025-09-24, 16:32

Thanks.
I've done more research in the meantime and the issue will be intermittent but is serious. A point update is in the pipeline at the moment and will be published asap.
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Re: 33.9.0 segfaults at every scroll event

Post by Moonchild » 2025-09-24, 22:15

33.9.0.1 is released that should address this issue.
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Re: 33.9.0 segfaults at every scroll event

Post by feriman » 2025-09-25, 09:00

=www-client/palemoon-33.9.0.1 was built on Gentoo with latest stable =sys-devel/gcc-14.3.1 and works correctly.
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