u/FastNumberCruncher

There's a whole lot of hype about quantum computing, but that is something else entirely. Why is there so little hype about photonic based computing? There's a handful of startups but they are very low key. Even in academia, there's a whole lot of hype about quantum computing but relatively little hype about optics based computation.

Can anyone with any insight into optics/photonics clue me in?

Recently I had multiple instances of my system freezing up. After investigation I noticed that I am having these issues with my persistent flash storage:

nvme nvme0: controller is down; will reset: CSTS=0x3, PCI_STATUS=0x10

kernel: nvme0n1: Read(0x2) @ LBA 160540672, 32 blocks, Host Aborted Command (sct 0x3 / sc 0x71)
I/O error, dev nvme0n1, sector 160540672 op 0x0:(READ) flags 0x880700 phys_seg 4 prio class 2

However a SMART test does not turn up anything:

=== START OF SMART DATA SECTION ===

SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff)

Critical Warning: 0x00

Temperature: 39 Celsius

Available Spare: 100%

Available Spare Threshold: 10%

Percentage Used: 6%

Data Units Read: 122,448,022 [62.6 TB]

Data Units Written: 77,608,698 [39.7 TB]

Host Read Commands: 3,957,617,815

Host Write Commands: 2,069,244,753

Controller Busy Time: 7,976

Power Cycles: 11,104

Power On Hours: 6,376

Unsafe Shutdowns: 305

Media and Data Integrity Errors: 0

Error Information Log Entries: 7,476

Warning Comp. Temperature Time: 0

Critical Comp. Temperature Time: 0

Temperature Sensor 1: 39 Celsius

Temperature Sensor 2: 50 Celsius

Error Information (NVMe Log 0x01, 16 of 64 entries)

Num ErrCount SQId CmdId Status PELoc LBA NSID VS Message

0 7476 0 0x000b 0x4004 - 0 0 - Invalid Field in Command

1 7475 0 0x003a 0x4016 0x004 0 1 - Invalid Namespace or Format

2 7474 0 0x0008 0x4004 - 0 0 - Invalid Field in Command

3 7473 0 0x001c 0x4004 - 0 0 - Invalid Field in Command

4 7472 0 0x003a 0x4016 0x004 0 1 - Invalid Namespace or Format

5 7471 0 0x0008 0x4004 - 0 0 - Invalid Field in Command

6 7470 0 0x201c 0x4004 - 0 0 - Invalid Field in Command

7 7469 0 0x003a 0x4016 0x004 0 1 - Invalid Namespace or Format

8 7468 0 0x0008 0x4004 - 0 0 - Invalid Field in Command

9 7467 0 0x0018 0x4004 - 0 0 - Invalid Field in Command

10 7466 0 0x0008 0x4004 - 0 0 - Invalid Field in Command

11 7465 0 0x300e 0x4004 - 0 0 - Invalid Field in Command

12 7464 0 0x003a 0x4016 0x004 0 1 - Invalid Namespace or Format

13 7463 0 0x0008 0x4004 - 0 0 - Invalid Field in Command

14 7462 0 0x301a 0x4004 - 0 0 - Invalid Field in Command

15 7461 0 0x003a 0x4016 0x004 0 1 - Invalid Namespace or Format

... (48 entries not read)

Self-test Log (NVMe Log 0x06, NSID 0xffffffff)

Self-test status: No self-test in progress

Num Test_Description Status Power_on_Hours Failing_LBA NSID Seg SCT Code

0 Extended Completed without error 6376 - - - - -

1 Short Completed without error 5730 - - - - -

I am not sure if the issue appeared since the last kernel update.

Does anyone have a clue what could be the cause. I already backed up all my info just in case my hardware is failing.