Re: Regression v6.11 booting cannot mount harddisks (xfs)

[Jens Axboe]

On 9/10/24 1:40 PM, Jesper Dangaard Brouer wrote:
> 
> 
> On 10/09/2024 21.21, Jens Axboe wrote:
>> On 9/10/24 1:19 PM, Jesper Dangaard Brouer wrote:
>>>
>>>
>>> On 10/09/2024 20.38, Jens Axboe wrote:
>>>> On 9/10/24 11:53 AM, Jesper Dangaard Brouer wrote:
>>>>> Hi Hellwig,
>>>>>
>>>>> I bisected my boot problem down to this commit:
>>>>>
>>>>> $ git bisect good
>>>>> af2814149883e2c1851866ea2afcd8eadc040f79 is the first bad commit
>>>>> commit af2814149883e2c1851866ea2afcd8eadc040f79
>>>>> Author: Christoph Hellwig <hch@xxxxxx>
>>>>> Date:   Mon Jun 17 08:04:38 2024 +0200
>>>>>
>>>>>       block: freeze the queue in queue_attr_store
>>>>>
>>>>>       queue_attr_store updates attributes used to control generating I/O, and
>>>>>       can cause malformed bios if changed with I/O in flight.  Freeze the queue
>>>>>       in common code instead of adding it to almost every attribute.
>>>>>
>>>>>       Signed-off-by: Christoph Hellwig <hch@xxxxxx>
>>>>>       Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
>>>>>       Reviewed-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
>>>>>       Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
>>>>>       Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx>
>>>>>       Link: https://lore.kernel.org/r/20240617060532.127975-12-hch@xxxxxx
>>>>>       Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
>>>>>
>>>>>    block/blk-mq.c    | 5 +++--
>>>>>    block/blk-sysfs.c | 9 ++-------
>>>>>    2 files changed, 5 insertions(+), 9 deletions(-)
>>>>>
>>>>> git describe --contains af2814149883e2c1851866ea2afcd8eadc040f79
>>>>> v6.11-rc1~80^2~66^2~15
>>>>
>>>> Curious, does your init scripts attempt to load a modular scheduler
>>>> for your root drive?
>>>
>>> I have no idea, this is just a standard Fedora 40.
>>>
>>>>
>>>> Reference: https://git.kernel.dk/cgit/linux/commit/?h=for-6.12/block&id=3c031b721c0ee1d6237719a6a9d7487ef757487b
>>>
> 
> [1] https://git.kernel.dk/cgit/linux/commit/?h=for-6.12/block&id=3c031b721c0ee1d6237719a6a9d7487ef757487b
> 
>>> The commit doesn't apply cleanly on top of af2814149883e2c185.
>>>
>>> $ patch --dry-run -p1 < ../block-jens/block-jens-bootfix.patch
>>> checking file block/blk-sysfs.c
>>> Hunk #1 FAILED at 23.
>>> Hunk #2 succeeded at 469 (offset 56 lines).
>>> Hunk #3 succeeded at 484 (offset 56 lines).
>>> Hunk #4 succeeded at 723 with fuzz 1 (offset 45 lines).
>>> 1 out of 4 hunks FAILED
>>> checking file block/elevator.c
>>> Hunk #1 FAILED at 698.
>>> 1 out of 1 hunk FAILED
>>> checking file block/elevator.h
>>> Hunk #1 FAILED at 148.
>>> 1 out of 1 hunk FAILED
>>>
>>> I will try to apply and adjust manually.
>>
>> Just apply it on top of current -git, doesn't have to be your bisection
>> point.
>>
> 
> I applied it manually and now my testlab server boots :-)

Excellent! I'll get it staged for 6.11 instead. Thank for reporting and
testing.

> Just with the patch[1] on top of bisection point
> ... as it was faster to recompile this way ;-)

That's a pathetic excuse for a test box then ;-)

-- 
Jens Axboe