Opera GX 128.0.5807.97 crashes immediately on startup (SEGV)

[MathieuSpi]

MathieuSpi last edited by leocg

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Environment:

• Opera GX: opera-gx-stable 128.0.5807.97 (amd64)
• OS: Arch Linux (rolling)
• Kernel: 6.19.9-arch1-1
• Desktop: KDE Plasma / Wayland (wayland-0)
• Shell: fish
• CPU: AMD Ryzen 7 7800X3D 8-Core Processor
• GPU: AMD Radeon RX 7900 XTX (RDNA3, navi31)
• GPU driver: Mesa 26.0.3 (radeonsi, ACO)
• Locale: fr_FR.UTF-8

System libraries:

• glibc 2.43
• Mesa 26.0.3 / vulkan-radeon 26.0.3
• Qt6 6.10.2 (qt6-base + qt6-wayland)
• NSS 3.122

Pre-checks:

• No missing shared libraries (ldd reports all found)
• No existing config directory (fresh install, no corrupted profile)
• No SELinux/AppArmor restrictions
• Binary SHA256: 69ebb502188db6fa2b0f2ba9e296105d5cfcb1ea47a6fa22aaacde1798fadce3
• Package source: official .deb from deb.opera.com, unmodified

Description:
Opera GX crashes immediately on startup with Signal 11 (SEGV) before any window appears. The crash is 100% reproducible and always occurs at the same offset (opera + 0x9780767). This is a fresh install with no prior configuration.

Comparison with other browsers on same system:

• Opera Stable 129.0.5823.22: works perfectly
• Brave 1.88.136 (Chromium 146): works perfectly
• Opera GX 128.0.5807.97: SEGV on startup

All three are Chromium-based. Only Opera GX crashes. This confirms the issue is 100% Opera GX-specific, not related to GPU drivers, Mesa, kernel, Wayland, or system libraries.

Tested workarounds (all crash identically at the same offset):

• opera-gx (default, Wayland)
• opera-gx --ozone-platform=x11
• opera-gx --no-sandbox
• opera-gx --disable-gpu
• opera-gx --no-sandbox --ozone-platform=x11
• opera-gx --disable-gpu --ozone-platform=x11

Crash stack trace (offsets from opera binary):

Signal: 11 (SEGV)
#0  0x9780767
#1  0xa5fbea3
#2  0xa5fbe2e
#3  0x87ec0bb
#4  0x87ebed0
#5  0x87eae23
#6  0x87e4517
#7  0x7bedb9b
#8  0x2f8de7b
#9  0x892646c
#10 0x8e6512e
#11 0x8925539
#12 0x90659b1
#13 0x9063084
#14 0x4ed2708
#15 0x4ed1c88
#16 0x7a9008c
#17 0x7a8e12c
#18 0x4ef43dc
#19 0x4b565b9
#20 0x4b563e5
#21 0x6e58ef6
#22 0x6e55a77
#23 0x8fc5458
#24 0x8fc511a
#25 0x8fc28a3
#26 0x4a9b73d  ChromeMain

Notes:

• Crash offset 0x9780767 is identical across all attempts, regardless of flags or display server
• Crash occurs during early initialization, before any UI renders
• Opera Stable works fine on the exact same system, proving this is not a driver/system issue
• The crash may be related to GX-specific initialization code (gaming features, GX Control, etc.)

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[MathieuSpi]

MathieuSpi last edited by

Update: Fixed in version 129.0.5823.26. Opera GX now launches correctly on the same system. The crash was specific to version 128.0.5807.97.