From: Michael Cree <mcree@orcon.net.nz>
To: Magnus Lindholm <linmag7@gmail.com>
Cc: richard.henderson@linaro.org, mattst88@gmail.com,
linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org,
glaubitz@physik.fu-berlin.de, ink@unseen.parts,
macro@orcam.me.uk
Subject: Re: [PATCH v3 0/8] alpha: enable generic entry infrastructure
Date: Sun, 14 Jun 2026 13:38:54 +1200 [thread overview]
Message-ID: <ai4GLtp1Iaqz_aVK@creeky> (raw)
In-Reply-To: <20260612203006.2265557-1-linmag7@gmail.com>
On Fri, Jun 12, 2026 at 10:26:48PM +0200, Magnus Lindholm wrote:
> This series moves Alpha closer to the common architecture infrastructure
> and enables GENERIC_ENTRY and GENERIC_IRQ_ENTRY. This is v3 of this patch
> series, please see below for changes since v1 and v2.
I am seeing sporadic Xorg crashes with this patchset applied to a 7.0
stable series kernel, usually within a minute of logging into the
desktop. The rest of system keeps running fine and there are no
messsages in the kernel log. I am testing on an XP1000 with Radeon
HD4350 graphics card. The same kernel without this patchset works
fine -- no Xorg crashes. Indeed, it has been playing the dulcet
tones of Pink Floyd through my sound system for the last hour without
a problem.
Example Xorg backtrace follows. In this case it is a fp exception
but sometimes it is a segfault:
[ 307.748] (EE)
[ 307.748] (EE) Backtrace:
[ 307.750] (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x7c) [0x12022b3dc]
[ 307.750] (EE) 1: /usr/lib/xorg/Xorg (0x120000000+0x230ae8) [0x120230ae8]
[ 307.751] (EE) 2: /usr/lib/alpha-linux-gnu/libc.so.6.1 (0x20000720000+0x49e70) [0x20000769e70]
[ 307.753] (EE) 3: /usr/lib/alpha-linux-gnu/libc.so.6.1 (0x20000720000+0x1a02e0) [0x200008c02e0]
[ 307.753] (EE) 4: /usr/lib/alpha-linux-gnu/libpixman-1.so.0 (pixman_sample_ceil_y+0xbc) [0x200003472fc]
[ 307.755] (EE) 5: /usr/lib/alpha-linux-gnu/libpixman-1.so.0 (pixman_rasterize_trapezoid+0xec) [0x20000347abc]
[ 307.755] (EE) 6: /usr/lib/xorg/modules/libglamoregl.so (0x20003d30000+0x6c5bc) [0x20003d9c5bc]
[ 307.755] (EE) 7: /usr/lib/xorg/Xorg (CompositeTrapezoids+0xb0) [0x12016a290]
[ 307.756] (EE) 8: /usr/lib/xorg/Xorg (0x120000000+0x16fa04) [0x12016fa04]
[ 307.758] (EE) 9: /usr/lib/xorg/Xorg (0x120000000+0x16a6c8) [0x12016a6c8]
[ 307.758] (EE) 10: /usr/lib/xorg/Xorg (0x120000000+0x58578) [0x120058578]
[ 307.758] (EE) 11: /usr/lib/xorg/Xorg (0x120000000+0x5d978) [0x12005d978]
[ 307.760] (EE) 12: /usr/lib/xorg/Xorg (0x120000000+0x3f9b8) [0x12003f9b8]
[ 307.762] (EE) 13: /usr/lib/alpha-linux-gnu/libc.so.6.1 (0x20000720000+0x2e490) [0x2000074e490]
[ 307.763] (EE) 14: /usr/lib/alpha-linux-gnu/libc.so.6.1 (__libc_start_main+0xc4) [0x2000074e5d4]
[ 307.763] (EE) 15: /usr/lib/xorg/Xorg (__start+0x38) [0x12003fa08]
[ 307.763] (EE)
[ 307.765] (EE) Floating point exception at address 0x200008c02e0
[ 307.765] (EE)
Fatal server error:
[ 307.765] (EE) Caught signal 8 (Floating point exception). Server aborting
Cheers,
Michael.
prev parent reply other threads:[~2026-06-14 2:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-12 20:26 [PATCH v3 0/8] alpha: enable generic entry infrastructure Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 1/8] alpha: enable regset-based ptrace and core dumps Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 2/8] alpha: add ARCH_STACKWALK-based stacktrace support Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 3/8] alpha: make irqflags helpers operate on IPL state Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 4/8] alpha: initialize PCI sysfs bin attributes for lockdep Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 5/8] alpha: provide ftrace return address support " Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 6/8] alpha: use raw spinlocks for low-level platform locks Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 7/8] alpha: enable lockdep hardirq state tracking Magnus Lindholm
2026-06-12 20:26 ` [PATCH v3 8/8] alpha: enable GENERIC_ENTRY and GENERIC_IRQ_ENTRY Magnus Lindholm
2026-06-12 21:38 ` Matt Turner
2026-06-13 12:25 ` Julian Braha
2026-06-14 1:38 ` Michael Cree [this message]
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