Bug 198069

Summary:	Delayed block allocation failed for inode on USB SSD
Product:	IO/Storage	Reporter:	syphyr (syphyr)
Component:	Other	Assignee:	io_other
Status:	NEW ---
Severity:	normal	CC:	steffen.weber
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	4.14.3	Subsystem:
Regression:	No	Bisected commit-id:

Description syphyr 2017-12-03 02:02:06 UTC

I am using an external USB SSD (Samsung T5 Portable SSD) connected to USB 3.0 port on my laptop with kernel 4.14.3.

Bus 002 Device 002: ID 04e8:61f5 Samsung Electronics Co., Ltd 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:0177 Realtek Semiconductor Corp. 
Bus 001 Device 004: ID 04f2:b52d Chicony Electronics Co., Ltd 
Bus 001 Device 003: ID 8087:0a2a Intel Corp. 
Bus 001 Device 002: ID 03f0:a407 Hewlett-Packard 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

When I compile source code on the portable USB SSD, I ofter get error messages like this:

 5682.333303] EXT4-fs (sdb1): Delayed block allocation failed for inode 5774711 at logical offset 247 with max blocks 4 with error 121
[ 5682.333307] EXT4-fs (sdb1): This should not happen!! Data will be lost

This appears to be an I/O issue only with kernel 4.14.x.  If I revert the kernel back to 4.9.66, there are no more errors and corrupted files on the portable SSD drive when compiling.

Comment 1 syphyr 2018-10-07 23:33:35 UTC

This error is fixed in the latest 4.18 kernel.  Using the latest 4.18 kernel, I can now successfully compile Android on my Samsung portable SSD T5 drive w/o having "block allocation failed" error messages.