Memory allocation failed

[MartiMan79]

I'm trying to access a log file over HTTP from a Pico W but getting mem errors.

File size: tried from 80k down to 30k maxBytes in the RotatingFileHandler settings but to no avail.

I've read about excessive fragmentation but to me it appears that's not the case as "76 lines all free"?

Code starts with:

async def serve_client(reader, writer):
    
    
    try:
        print("Client connected")
        request_line = await reader.readline()
        print("Request:", request_line)

# We are not interested in HTTP request headers, skip them
        while await reader.readline() != b"\r\n":
            pass
        gc.collect()
        m = gc.mem_free()
        print(micropython.mem_info(True))
        info = os.stat("/debug.log")
        filesize = info[6]
        print('File size = ',filesize)
        print('mem free', m)

        etc...

Any ideas?
Thanks in advance.

Request: b'GET /log HTTP/1.1\r\n'
Client connected
stack: 1300 out of 7936
GC: total: 189952, used: 52448, free: 137504
 No. of 1-blocks: 582, 2-blocks: 173, max blk sz: 122, max free sz: 4955
GC memory layout; from 20011a00:
00000000: MDMLhhhSMDhhDLSDBBBBhDhhh===MDBDh====B=BBBBBBDB=BhB=BBB.B=DBDB=B
00000400: h===hB=h===========B=.MDSh===================h========h=========
00000800: ========h=======================================================
00000c00: ========h=======================================================
00001000: ========h=h=hhhBBMBDSDSSDBMDhhDShTShhBh==.TSh=MD.BDh=.DSh=======
00001400: hTD.h==SSh=======h========BBDh===h==BBh=h===hhhDB=BSBh==DDBBBh==
00001800: h==h=======BBBBBBBBBBBBBBBBh========BBBh================Bh===BB=
00001c00: B==DBBBDh=======Bh==h===hh==h=======SBBB=hBBBh==DhhDhBB=h=h===h=
00002000: =h===hShhhhh=============BB=B=hhDhBh==h===DBBDSBhSh==h=BBBSh====
00002400: ===h=======hSSh=B=BhBB=h===h====hBBh=h=h==================Lh=hBS
00002800: Dh==SSBhBhBSh==h===SBBBh===hDB=hhhh=Bhhhh=DTDhh====hhhhhhBBh=B=h
00002c00: hh===Dhh=hhhhh===hBhLh===h=Lhhhh=B=h=BBh========================
00003000: =======h===hSh====h==h=====hh=h==h===hMDSh===hhh...hhSThh=.hhhAh
00003400: ===hLhh==.h=.SSh=h===========T=Shhh==============h=h=hhBBhh=====
00003800: ==ShSh=h=SSShh====h=SLh=h==================hShh=h=h=h=hh=======B
00003c00: hh===hDh.BhhhSh===h=Dhh=hhBBhSSh==h.h=hSh=hh=h=h.Sh=Fh=h========
00004000: ======Sh=h========h===..B.Mh==h=============h====h======S.D..h==
00004400: h.h.ShS......MD..Bh====hSShh====================================
00004800: =========================h=======hSh=.h...h==SSSh==SST...h=h====
00004c00: =====.MD.hBhDSSh==Sh==hSSSh==..hhSh=h=BBB.Bh===h==h===MDhShF....
00005000: D.h=hB..B.Fh===h==.......................h===...................
00005400: .....................................................h==hTD.....
00005800: .................................hBBhh=h=B==....BBB.........h=..
00005c00: BBBBBBBBB.Sh==Sh=....S.hSBBh===h===.Sh=.h===========h========.Sh
00006000: =======Sh=h.h=h=S...h=S.SSh=..h=...h=h=====S..SSh=....h=FSh==h=h
00006400: hhh==ST=hMh==hMD...h=DBBhhBhDhh.....Sh=ShS.h==BBhhhhhBhhh=Sh==..
00006800: ............D.h=======BD.h===h===B=h.Bhhhh=h=======h============
00006c00: ========================h=======Sh=h=h=h=ShSh=Sh=Sh=BhD..T......
00007000: .............FhSh.hh=hShh===hhBh=..h=TThSSh=.Sh=h===============
00007400: ===.h=Thh===SSShh===.h=h====h====Sh=h=h=Sh=h========......hh..Sh
00007800: ======.........h=h=Shh=h=======h=h=======SSh==h=h=======Sh.....S
00007c00: .h=Sh=hSSh=========..........h=h=======================.........
00008000: ...............h==................h==h=Fh=.h===h=====...........
00008400: ....hSh=h=h=hh=====hh=hh=h=h=h=h=h===h=h==hhh==h==h=h=Shh===h==h
00008800: ==h==h========h==hhh===hh=h======h=======.h===============hS....
00008c00: ...h==h=hh=======h=h...........h................................
00009000: ................................Sh.........ShSh==..h=ShShSShSh=S
00009400: h=Sh=ShSh=Sh=Sh=======================================h=........
00009800: .....h.......h=h=Sh=..........SSh.........hhSh==..........SSh==.
00009c00: ................................................................
0000a000: ...........................h====......................h=Sh......
0000a400: .......h===========..............................h=h=h=hh==h==h=
0000a800: h=============h=================================h========h=h=h.h
0000ac00: ===========================h=======================h====h=====h=
0000b000: ========h===h==========h===============h===h=========h==h======h
0000b400: ===Sh=================================================h=========
0000b800: ============h===========h=====h====h==h==h========..............
0000bc00: ......................................h=========================
0000c000: ============================h===================================
0000c400: ===================h===================================.........
       (4 lines all free)
0000d800: ..h=====h=h=====h=h====h=h===h=......h..........................
       (2 lines all free)
0000e400: ..........h=====================================================
0000e800: ================================================================
0000ec00: ====............................................................
       (8 lines all free)
00011000: ......h=======..................................................
00011400: ................................................................
00011800: ..................h=.............h=............h=...............
00011c00: .....h=.........................................................
00012000: .............SSh=...............................................
00012400: ................................................................
00012800: ........h........S..............................................
00012c00: .................................h=======.......................
00013000: ..............................................h====.............
00013400: ................................................................
00013800: .....................................................h=.........
00013c00: Sh=..........Sh=.............Sh=................................
00014000: ..........................................Sh=...........Sh==....
       (2 lines all free)
00014c00: .....................................Sh=........................
00015000: ........h=====================================.........Sh=......
       (2 lines all free)
00015c00: .Sh==..............Sh.........Sh=..................MD.Sh=Sh==...
00016000: ................................................................
00016400: ....................BBDBBBhBhBBBBh===h===...B==B..............h=
00016800: =======.........................h=...hh...............h=....h=..
00016c00: h=...............h=..........h=....h=.........................h=
00017000: ................................................................
00017400: ................................................h...............
       (3 lines all free)
00018400: .........h==h===....................h===h====h===h==============
00018800: ==================h===h===============h==========h===h====h=====
00018c00: h==============h===.............................................
       (2 lines all free)
00019800: ...............h=......h========================================
00019c00: =====h=======h=========h====h==================h============h===
0001a000: ===============h===h============================================
0001a400: ==================h=======h===============================h=====
0001a800: =======================h========h======h====h===h==h====h=======
0001ac00: =======h=====h====h=====h=======================================
0001b000: =====...........................................................
       (76 lines all free)
0002e400: ................................
None
File size =  45404
mem free 137504