Bug 14546 - The samba3.smb2.timestamps test fails on ext4 (year 2038 -> year 2446)
Summary: The samba3.smb2.timestamps test fails on ext4 (year 2038 -> year 2446)
Status: ASSIGNED
Alias: None
Product: Samba 4.1 and newer
Classification: Unclassified
Component: smbtorture (show other bugs)
Version: 4.13.0
Hardware: All All
: P5 normal (vote)
Target Milestone: ---
Assignee: Jeremy Allison
QA Contact: Samba QA Contact
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-10-22 12:32 UTC by Andreas Schneider
Modified: 2020-10-22 16:36 UTC (History)
1 user (show)

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Description Andreas Schneider 2020-10-22 12:32:01 UTC 
The filesystem timestamps were improved in ext4. The addition of two high-order bits in the timestamp field defers the Year 2038 problem until 2446—for EXT4 filesystems, at least.

However this means that the test fails with:

[779(5526)/2647 at 42m57s] samba3.smb2.timestamps(nt4_dc)                                                                                                                                    
smbtorture 4.13.0                                                                                                                                                                            
Using seed 1603364661                                                                                                                                                                        
Got: create: Thu May 10 22:38:55 2446 UTC, write: Thu May 10 22:38:55 2446 UTC, change: Thu May 10 22:38:55 2446 UTC                                                                         
Got: create: Thu May 10 22:38:55 2446 UTC, write: Tue Jan 19 03:14:07 2038 UTC, change: Tue Jan 19 03:14:07 2038 UTC                                                                         
UNEXPECTED(failure): samba3.smb2.timestamps.time_t_15032385535(nt4_dc)                                                                                                                       
REASON: Exception: Exception: ../../source4/torture/smb2/timestamps.c:184: nttime was 266768591350000000 (0x3B3C09ED4A5E980), expected 137919572470000000 (0x1E9FD1ED4A5E980): Wrong write time
Comment 1 Andreas Schneider 2020-10-22 15:25:35 UTC 
The failing tests are:

samba3.smb2.timestamps.time_t_15032385535
samba3.smb2.timestamps.time_t_10000000000
samba3.smb2.timestamps.time_t_4294967295
Comment 2 Ralph Böhme 2020-10-22 16:36:49 UTC 
(In reply to Andreas Schneider from comment #1)
Wonder why these fails when the fs is *expanding* the value range as the tests just test time_t value that are *within* INT32_MAX (or UINT32_MAX, not sure which one :) ).