Re: Fwd: Kernel 6.5.2 Causes Marvell Technology Group 88SE9128 PCIe SATA to Constantly Reset

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On Fri, Sep 15, 2023 at 02:54:19PM +0800, David Gow wrote:
> Le 2023/09/15 à 13:41, Damien Le Moal a écrit :
> > On 9/15/23 12:22, David Gow wrote:
> > > Le 2023/09/13 à 23:12, Niklas Cassel a écrit :
> > > > On Wed, Sep 13, 2023 at 06:25:31PM +0700, Bagas Sanjaya wrote:
> > > > > Hi,
> > > > > 
> > > > > I notice a regression report on Bugzilla [1]. Quoting from it:
> > > > > 
> > > > > > After upgrading to 6.5.2 from 6.4.12 I keep getting the following kernel messages around three times per second:
> > > > > > 
> > > > > > [ 9683.269830] ata16: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > > > > > [ 9683.270399] ata16.00: configured for UDMA/66
> > > > > > 
> > > > > > So I've tracked the offending device:
> > > > > > 
> > > > > > ll /sys/class/ata_port/ata16
> > > > > > lrwxrwxrwx 1 root root 0 Sep 10 21:51 /sys/class/ata_port/ata16 -> ../../devices/pci0000:00/0000:00:1c.7/0000:0a:00.0/ata16/ata_port/ata16
> > > > > > 
> > > > > > cat /sys/bus/pci/devices/0000:0a:00.0/uevent
> > > > > > DRIVER=ahci
> > > > > > PCI_CLASS=10601
> > > > > > PCI_ID=1B4B:9130
> > > > > > PCI_SUBSYS_ID=1043:8438
> > > > > > PCI_SLOT_NAME=0000:0a:00.0
> > > > > > MODALIAS=pci:v00001B4Bd00009130sv00001043sd00008438bc01sc06i01
> > > > > > 
> > > > > > lspci | grep 0a:00.0
> > > > > > 0a:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9128 PCIe SATA 6 Gb/s RAID controller with HyperDuo (rev 11)
> > > > > > 
> > > > > > I am not using the 88SE9128, so I have no way of knowing whether it works or not. It may simply be getting reset a couple of times per second or it may not function at all.
> > > > > 
> > > > > See Bugzilla for the full thread.
> > > > > 
> > > > > patenteng: I have asked you to bisect this regression. Any conclusion?
> > > > > 
> > > > > Anyway, I'm adding this regression to regzbot:
> > > > > 
> > > > > #regzbot: introduced: v6.4..v6.5 https://bugzilla.kernel.org/show_bug.cgi?id=217902
> > > > 
> > > > Hello Bagas, patenteng,
> > > > 
> > > > 
> > > > FYI, the prints:
> > > > [ 9683.269830] ata16: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > > > [ 9683.270399] ata16.00: configured for UDMA/66
> > > > 
> > > > Just show that ATA error handler has been invoked.
> > > > There was no reset performed.
> > > > 
> > > > If there was a reset, you would have seen something like:
> > > > [    1.441326] ata8: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> > > > [    1.541250] ata8.00: configured for UDMA/133
> > > > [    1.541411] ata8: hard resetting link
> > > > 
> > > > 
> > > > Could you please try this patch and see if it improves things for you:
> > > > https://lore.kernel.org/linux-ide/20230913150443.1200790-1-nks@xxxxxxxxxxx/T/#u
> > > > 
> > > 
> > > FWIW, I'm seeing a very similar issue both in 6.5.2 and in git master
> > > [aed8aee11130 ("Merge tag 'pmdomain-v6.6-rc1' of
> > > git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm") with that
> > > patch applied.
> > > 
> > > 
> > > The log is similar (the last two lines repeat several times a second):
> > > [    0.369632] ata14: SATA max UDMA/133 abar m2048@0xf7c10000 port
> > > 0xf7c10480 irq 33
> > > [    0.683693] ata14: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > > [    1.031662] ata14.00: ATAPI: MARVELL VIRTUALL, 1.09, max UDMA/66
> > > [    1.031852] ata14.00: configured for UDMA/66
> > > [    1.414145] ata14: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > > [    1.414505] ata14.00: configured for UDMA/66
> > > [    1.744094] ata14: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > > [    1.744368] ata14.00: configured for UDMA/66
> > > [    2.073916] ata14: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > > [    2.074276] ata14.00: configured for UDMA/66
> > > 
> > > 
> > > lspci shows:
> > > 09:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9230 PCIe 2.0
> > > x2 4-port SATA 6 Gb/s RAID Controller (rev 10) (prog-if 01 [AHCI 1.0])
> > >           Subsystem: Gigabyte Technology Co., Ltd Device b000
> > >           Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> > > ParErr- Stepping- SERR- FastB2B- DisINTx+
> > >           Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> > > <TAbort- <MAbort- >SERR- <PERR- INTx-
> > >           Latency: 0, Cache Line Size: 64 bytes
> > >           Interrupt: pin A routed to IRQ 33
> > >           Region 0: I/O ports at b050 [size=8]
> > >           Region 1: I/O ports at b040 [size=4]
> > >           Region 2: I/O ports at b030 [size=8]
> > >           Region 3: I/O ports at b020 [size=4]
> > >           Region 4: I/O ports at b000 [size=32]
> > >           Region 5: Memory at f7c10000 (32-bit, non-prefetchable) [size=2K]
> > >           Expansion ROM at f7c00000 [disabled] [size=64K]
> > >           Capabilities: <access denied>
> > >           Kernel driver in use: ahci
> > > 
> > > The controller in question lives on a Gigabyte Z87X-UD5H-CF motherboard.
> > > I'm using the controller for several drives, and it's working, it's just
> > > spammy. (At worst, there's some performance hitching, but that might
> > > just be journald rotating logs as they fill up with the message).
> > > 
> > > I haven't had a chance to bisect yet (this is a slightly awkward machine
> > > for me to install test kernels on), but can also confirm it worked with
> > > 6.4.12.
> > > 
> > > Hopefully that's useful. I'll get back to you if I manage to bisect it.
> > 
> > Bisect will definitely be welcome. But first, please try adding the patch that
> > Niklas mentioned above:
> > 
> > https://lore.kernel.org/linux-ide/20230913150443.1200790-1-nks@xxxxxxxxxxx/T/#u
> > 
> > If that fixes the issue, we know the culprit :)
> > 
> 
> 
> Sorry: I wasn't clear. I did try with that patch (applied on top of
> torvalds/master), and the issue remained.
> 
> I've started bisecting, but fear it'll take a while.

I can recommend using QEMU and PCI passthrough to bisect, as it is much
faster to boot a kernel using QEMU with KVM than to do a real reboot.

It takes a while to set up the first time, but you know what they say:
"give a man a fish and you feed him for a day;
teach a man to fish and you feed him for a lifetime".

There are many ways to do it, but here is an example guide:
https://github.com/floatious/qemu-bisect-doc


Kind regards,
Niklas




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