Re: Possible nvme regression in 6.4.11

[Genes Lists]

On 8/16/23 17:04, Keith Busch wrote:
...
> It sounds like you can recreate this. Since .10 worked and .11 doesn't,
> could you bisect the git commits? It looks like it will take 7 steps
> between those two versions.
>
> I don't think there are any nvme specific patches that could contribute
> to what you're seeing, it's more likely some lower level platform patch
> if a kernel change really did cause the regression. None of the recent
> commits really stood out to me, so bisect is what I'd recommend.

Thank you

Bisect done - This is result:

----------------------------------------------------------------
69304c8d285b77c9a56d68f5ddb2558f27abf406 is the first bad commit
commit 69304c8d285b77c9a56d68f5ddb2558f27abf406
Author: Ricky WU <ricky_wu@xxxxxxxxxxx>
Date:   Tue Jul 25 09:10:54 2023 +0000

    misc: rtsx: judge ASPM Mode to set PETXCFG Reg

    commit 101bd907b4244a726980ee67f95ed9cafab6ff7a upstream.

    ASPM Mode is ASPM_MODE_CFG need to judge the value of clkreq_0
    to set HIGH or LOW, if the ASPM Mode is ASPM_MODE_REG
    always set to HIGH during the initialization.

    Cc: stable@xxxxxxxxxxxxxxx
    Signed-off-by: Ricky Wu <ricky_wu@xxxxxxxxxxx>
    Link: 
https://lore.kernel.org/r/52906c6836374c8cb068225954c5543a@xxxxxxxxxxx
    Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

 drivers/misc/cardreader/rts5227.c  |  2 +-
 drivers/misc/cardreader/rts5228.c  | 18 ------------------
 drivers/misc/cardreader/rts5249.c  |  3 +--
 drivers/misc/cardreader/rts5260.c  | 18 ------------------
 drivers/misc/cardreader/rts5261.c  | 18 ------------------
 drivers/misc/cardreader/rtsx_pcr.c |  5 ++++-
 6 files changed, 6 insertions(+), 58 deletions(-)

------------------------------------------------------

And the machine does have this hardware:

03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A 
PCI Express Card Reader (rev 01)
        Subsystem: Dell RTS525A PCI Express Card Reader
        Physical Slot: 1
        Flags: bus master, fast devsel, latency 0, IRQ 141
        Memory at ed100000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [80] Power Management version 3
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [b0] Express Endpoint, MSI 00
        Kernel driver in use: rtsx_pci
        Kernel modules: rtsx_pci