From: Chuck Lever III <chuck.lever@oracle.com>
To: "dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: 572994bf18ff prevents system boot
Date: Sun, 3 Oct 2021 18:09:49 +0000 [thread overview]
Message-ID: <A194B6CE-AF77-422D-A92F-292ABD83BCCE@oracle.com> (raw)
Hi-
After updating one of my test systems to v5.15-rc, I found that it
becomes unresponsive during the later part of the boot process. A
power-on reset is necessary to recover.
I bisected to this commit:
572994bf18ff ("drm/ast: Zero is missing in detect function")
Checking out v5.15-rc3 and reverting this commit enables the system
to boot again.
0b:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics Family (rev 30) (prog-if 00 [VGA controller])
DeviceName: ASPEED Video AST2400
Subsystem: Super Micro Computer Inc X10SRL-F
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 18
Region 0: Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at fb000000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at c000 [size=128]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable- Count=1/4 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Kernel driver in use: ast
Kernel modules: ast
--
Chuck Lever
next reply other threads:[~2021-10-03 18:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-03 18:09 Chuck Lever III [this message]
2021-10-04 7:07 ` 572994bf18ff prevents system boot Thomas Zimmermann
2021-10-04 13:34 ` Chuck Lever III
2021-10-04 14:07 ` Thomas Zimmermann
2021-10-04 14:11 ` Chuck Lever III
2021-10-08 8:49 ` Thomas Zimmermann
2021-10-10 19:42 ` Chuck Lever III
2021-10-13 14:56 ` Chuck Lever III
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