Re:Re: [f2fs-dev] [PATCH v5 00/16] f2fs: support & optimize large folios for writable files

[Nanzhe Zhao]

Hi Jaeguk:
At 2026-10-15 10:13:53, "Jaegeuk Kim" <jaegeuk@xxxxxxxxxx> wrote:
>Ok, this comes when applying "f2fs: carry subpage offset and count in write IO".
>
>On 10/14, Jaegeuk Kim via Linux-f2fs-devel wrote:
>> Hi Nanzhe,
>> 
>> Could you please check IO submission path for Zoned block device?
>> I hit this.
>> 
>> [   93.100225] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.100420] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.100551] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.100948] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.101432] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.101762] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.101907] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.102564] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.103054] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.103447] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.103667] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.104294] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.104373] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.104449] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.105220] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.105253] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI
>> [   93.105532] sd 0:0:0:4: Retrying unaligned write for zone 2639; offset 259443312; zone offset 19056; I/O scheduler (none); rq 00000000653b6a70 {.op=WRI

Could you tell me which line of code prints this log？ I've found a bit difficult to find in my f2fs dev-test kernel tree and pixel android mainline kernel tree..

Thanks,
Nanzhe