* [Bug 206527] New: Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y fails to boot on a PowerMac G4 3,6
@ 2020-02-13 20:40 bugzilla-daemon
2020-02-14 9:55 ` [Bug 206527] " bugzilla-daemon
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: bugzilla-daemon @ 2020-02-13 20:40 UTC (permalink / raw)
To: linuxppc-dev
https://bugzilla.kernel.org/show_bug.cgi?id=206527
Bug ID: 206527
Summary: Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y
fails to boot on a PowerMac G4 3,6
Product: Platform Specific/Hardware
Version: 2.5
Kernel Version: 5.6.0-rc1
Hardware: PPC-32
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: PPC-32
Assignee: platform_ppc-32@kernel-bugs.osdl.org
Reporter: erhard_f@mailbox.org
Regression: No
Created attachment 287361
--> https://bugzilla.kernel.org/attachment.cgi?id=287361&action=edit
screenshot of stuck boot process
Happens on my G4 DP with kernel 5.6.0-rc1 and KASAN (outline) enabled +
CONFIG_VMAP_STACK enabled. kernel is patched with Christophe's '[v2]
powerpc/32s: Fix DSI and ISI exceptions for CONFIG_VMAP_STACK'
(https://patchwork.ozlabs.org/patch/1237387/)
The kernel loads but booting gets stuck at a stage where the display is
initialized but before kernel dmesg gets show (see screenshot).
The machine boots with either CONFIG_VMAP_STACK=y or CONFIG_KASAN=y enabled but
not with both of them enabled together.
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* [Bug 206527] Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y fails to boot on a PowerMac G4 3,6
2020-02-13 20:40 [Bug 206527] New: Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y fails to boot on a PowerMac G4 3,6 bugzilla-daemon
@ 2020-02-14 9:55 ` bugzilla-daemon
2020-02-14 13:06 ` bugzilla-daemon
2020-02-26 15:33 ` bugzilla-daemon
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla-daemon @ 2020-02-14 9:55 UTC (permalink / raw)
To: linuxppc-dev
https://bugzilla.kernel.org/show_bug.cgi?id=206527
Christophe Leroy (christophe.leroy@c-s.fr) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |christophe.leroy@c-s.fr
--- Comment #1 from Christophe Leroy (christophe.leroy@c-s.fr) ---
Can you test v3, https://patchwork.ozlabs.org/patch/1237954/
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* [Bug 206527] Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y fails to boot on a PowerMac G4 3,6
2020-02-13 20:40 [Bug 206527] New: Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y fails to boot on a PowerMac G4 3,6 bugzilla-daemon
2020-02-14 9:55 ` [Bug 206527] " bugzilla-daemon
@ 2020-02-14 13:06 ` bugzilla-daemon
2020-02-26 15:33 ` bugzilla-daemon
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla-daemon @ 2020-02-14 13:06 UTC (permalink / raw)
To: linuxppc-dev
https://bugzilla.kernel.org/show_bug.cgi?id=206527
--- Comment #2 from Erhard F. (erhard_f@mailbox.org) ---
Excellent, with v3 KASAN (outline + inline) now work together with
CONFIG_VMAP_STACK=y!
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* [Bug 206527] Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y fails to boot on a PowerMac G4 3,6
2020-02-13 20:40 [Bug 206527] New: Kernel 5.6-rc1 w. CONFIG_VMAP_STACK=y + CONFIG_KASAN=y fails to boot on a PowerMac G4 3,6 bugzilla-daemon
2020-02-14 9:55 ` [Bug 206527] " bugzilla-daemon
2020-02-14 13:06 ` bugzilla-daemon
@ 2020-02-26 15:33 ` bugzilla-daemon
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla-daemon @ 2020-02-26 15:33 UTC (permalink / raw)
To: linuxppc-dev
https://bugzilla.kernel.org/show_bug.cgi?id=206527
Erhard F. (erhard_f@mailbox.org) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |CODE_FIX
--- Comment #3 from Erhard F. (erhard_f@mailbox.org) ---
Fix landed in 5.6-rc3, works now as expected. Thanks!
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