Size error in fsx test.

[zhoucheng361]

What happened:

https://github.com/juicedata/juicefs/actions/runs/9180031853/job/25243543237

13646: TRUNCATE UP     from 0x2c88c4 (2918596) to 0x83d590 (8639888)
13647: TRUNCATE UP     from 0x83d590 (8639888) to 0x8c6080 (9199744)
13648: MAPWRITE        0x655898 (6641816) thru 0x65d333 (6673203)	(0x7a9c (31388) bytes)
13649: TRUNCATE DOWN   from 0x8c6080 (9199744) to 0x358550 (3507536)
13650: TRUNCATE UP     from 0x358550 (3507536) to 0x640a78 (6556280)
13651: WRITE           0x848cfc (8686844) thru 0x84d1f3 (8704499)	(0x44f8 (17656) bytes) HOLE
13652: TRUNCATE UP     from 0x84d1f4 (8704500) to 0x8cee10 (9235984)
13653: MAPWRITE        0x8c6de4 (9203172) thru 0x8cee0f (9235983)	(0x802c (32812) bytes)
13654: MAPREAD         0x4272b0 (4354736) thru 0x432c73 (4402291)	(0xb9c4 (47556) bytes)
13655: READ            0x241a30 (2366000) thru 0x24b44f (2405455)	(0x9a20 (39456) bytes)
13656: TRUNCATE DOWN   from 0x8cee10 (9235984) to 0x6a783c (6977596)
13657: WRITE           0x618fc0 (6393792) thru 0x624937 (6441271)	(0xb978 (47480) bytes)
13658: TRUNCATE DOWN   from 0x6a783c (6977596) to 0x553dec (5586412)
13659: TRUNCATE UP     from 0x553dec (5586412) to 0x62be88 (6471304)
13660: TRUNCATE DOWN   from 0x62be88 (6471304) to 0x53a36c (5481324)
13661: MAPREAD         0xcd5c8 (841160) thru 0xced53 (847187)	(0x178c (6028) bytes)
13662: TRUNCATE DOWN   from 0x53a36c (5481324) to 0x2b4524 (2835748)
13663: TRUNCATE DOWN   from 0x2b4524 (2835748) to 0x23aecc (2338508)
13664: TRUNCATE UP     from 0x23aecc (2338508) to 0x4a6200 (4874752)
13665: TRUNCATE UP     from 0x4a6200 (4874752) to 0x7fe47c (8381564)
13666: MAPWRITE        0x7fd9f4 (8378868) thru 0x7fe47b (8381563)	(0xa88 (2696) bytes)
13667: MAPWRITE        0x613f98 (6373272) thru 0x62329f (6435487)	(0xf308 (62216) bytes)
13668: READ            0x22018 (139288) thru 0x23b3f (146239)	(0x1b28 (6952) bytes)
13669: TRUNCATE UP     from 0x7fe47c (8381564) to 0x984c5c (9981020)
13670: MAPWRITE        0x97baa0 (9943712) thru 0x984c5b (998[1019](https://github.com/juicedata/juicefs/actions/runs/9180031853/job/25243543237#step:11:1020))	(0x91bc (37308) bytes)
13671: READ            0x155a4 (87460) thru 0x22dc7 (142791)	(0xd824 (55332) bytes)
13672: MAPREAD         0x83d6dc (8640220) thru 0x849107 (8687879)	(0xba2c (47660) bytes)
13673: READ            0x620188 (6422920) thru 0x62bf33 (6471475)	(0xbdac (48556) bytes)
13674: MAPREAD         0x38ddd4 (3726804) thru 0x39a0d7 (3776727)	(0xc304 (49924) bytes)
13675: TRUNCATE DOWN   from 0x984c5c (998[1020](https://github.com/juicedata/juicefs/actions/runs/9180031853/job/25243543237#step:11:1021)) to 0x971f74 (9903988)
13676: READ            0x4e2e40 (5123648) thru 0x4ee357 (5170007)	(0xb518 (46360) bytes)
13677: TRUNCATE DOWN   from 0x971f74 (9903988) to 0x7c31a8 (8139176)
13678: WRITE           0x7b75bc (8091068) thru 0x7be403 (8119299)	(0x6e48 (28232) bytes)
13679: READ            0x163be0 (1457120) thru 0x167197 (1470871)	(0x35b8 (13752) bytes)
13680: WRITE           0x86b0a8 (8827048) thru 0x86b87f (8829055)	(0x7d8 (2008) bytes) HOLE
13681: WRITE           0x631478 (6493304) thru 0x6342eb (6505195)	(0x2e74 (11892) bytes)
13682: WRITE           0x728cf8 (7507192) thru 0x73240f (7545871)	(0x9718 (38680) bytes)
13683: TRUNCATE DOWN   from 0x86b880 (8829056) to 0x346554 (3433812)
13684: READ            0x23e528 (2352424) thru 0x2493bf (2397119)	(0xae98 (44696) bytes)
13685: WRITE           0x74eff8 (7663608) thru 0x75002b (7667755)	(0x1034 (4148) bytes) HOLE
13686: TRUNCATE DOWN   from 0x75002c (7667756) to 0x44e600 (4515328)
13687: TRUNCATE UP     from 0x44e600 (4515328) to 0x6cb06c (7123052)
13688: MAPWRITE        0x6c53e0 (7099360) thru 0x6cb06b (7123051)	(0x5c8c (23692) bytes)
Size error: expected 0x6cb06c stat 0xffffffffffffffff seek 0x6cb06c
Correct content saved for comparison
(maybe hexdump "/tmp/fsx.out" vs "/tmp/fsx.out.fsxgood")
Seed was set to 1716326563

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?

Environment:

• JuiceFS version (use juicefs --version) or Hadoop Java SDK version:
• Cloud provider or hardware configuration running JuiceFS:
• OS (e.g cat /etc/os-release):
• Kernel (e.g. uname -a):
• Object storage (cloud provider and region, or self maintained):
• Metadata engine info (version, cloud provider managed or self maintained):
• Network connectivity (JuiceFS to metadata engine, JuiceFS to object storage):
• Others:

[SandyXSD]

The real error: check_size: fstat: Interrupted system call

[SandyXSD]

Weird access log:

2024.05.24 17:19:59.179251 [uid:0,gid:0,pid:0] write (18437,61440,5386240,94) - OK <0.000136>
2024.05.24 17:19:59.179355 [uid:0,gid:0,pid:1681334] getattr (18437): (18437,[-rw-r--r--:0100644,1,0,0,1716542088,1716542399,1716542399,8423716
2024.05.24 17:19:59.209987 [uid:0,gid:0,pid:1681334] setattr (18437[94],0x248,[size=4744348]): (18437,[-rw-r--r--:0100644,1,0,0,1716542088,1716
2024.05.24 17:19:59.210461 [uid:0,gid:0,pid:1681334] write (18439,9,662,98): (signal 2
) - OK <0.000027>
2024.05.24 17:19:59.211623 [uid:0,gid:0,pid:1681334] write (18439,18,671,98) - OK <0.000008>
2024.05.24 17:19:59.213241 [uid:0,gid:0,pid:1681334] flush (18437,94,3644B96B778CA4FE) - OK <0.000043>
2024.05.24 17:19:59.213319 [uid:0,gid:0,pid:1681334] flush (18438,96,3644B96B778CA4FE) - OK <0.000005>