Re: Fwd: vmalloc error: btrfs-delalloc btrfs_work_helper [btrfs] in kernel 6.3.x

[Forza]

---- From: Bagas Sanjaya <bagasdotme@xxxxxxxxx> -- Sent: 2023-05-22 - 15:25 ----

> Hi,
> 
> I notice a regression report on Bugzilla [1]. Quoting from it:
> 
>> after updating from 6.2.x to 6.3.x, vmalloc error messages started to appear in the dmesg
>> 
>> 
>> 
>> # free 
>>                total        used        free      shared  buff/cache   available
>> Mem:        16183724     1473068      205664       33472    14504992    14335700
>> Swap:       16777212      703596    16073616
>> 
>> 
>> (zswap enabled)
> 
> See bugzilla for the full thread and attached dmesg.
> 
> On the report, the reporter can't perform the required bisection,
> unfortunately.
> 
> Anyway, I'm adding it to regzbot:
> 
> #regzbot introduced: v6.2..v6.3 https://bugzilla.kernel.org/show_bug.cgi?id=217466
> #regzbot title: btrfs_work_helper dealloc error in v6.3.x
> 
> Thanks.
> 
> [1]: https://bugzilla.kernel.org/show_bug.cgi?id=217466
> 

I have a similar experience with kernel 6.3 where vmalloc fails in a similar way. I was able to reproduce it in a QEMU VM as well as on my system. 

https://lore.kernel.org/all/d11418b6-38e5-eb78-1537-c39245dc0b78@xxxxxxxxxxxx/T/