Bug 58151
| Summary: | Large files being truncated on read from CDROM drive | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Need Real Name <bdutta> |
| Component: | kernel-pcmcia-cs | Assignee: | Dave Jones <davej> |
| Status: | CLOSED WONTFIX | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.2 | CC: | pfrields |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2004-11-25 07:30:39 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Can you try disabling dma for the drive ? hdparm -d0 /dev/hdc ought to do the trick... hdparm -d0 /dev/hdc certainly did not do the trick for me. |
Description of Problem: My Laptop (Comapq Pressarion 1711T) has this LG DRN-8080B DVD/CD drive. It works fine in WindowsXP and used to work fine with RH7.1 too. I installed RH7.2 (fresh install) using the same DVD/CD drive. Now whenever i try to copy small files form CD to HDD, i am able to, *but* whenever i try to copy large files, all such files are only partly copied (truncated to 1601536 bytes), followed by an i/o error message. Same happens to an external CDRW drive (USB), i.e. large files read from that too are truncated. Version-Release number of selected component (if applicable): The base version (original in CD) of PCMCIA kernel. Don't remember off hand. How Reproducible: 100% reproducable. Steps to Reproduce: 1. Try to copy any file > 1601536 2. 3. Actual Results: Expected Results: Additional Information: output of kernel log file --- ...: hdc: command error: status=0x51 { DriveReady SeekComplete Error } ...: hdc: command error: error=0x51 ...: end_request: I/O error, dev 16:00 (hdc), sector 511216 ...: hdc: command error: status=0x51 { DriveReady SeekComplete Error } ...: hdc: command error: error=0x51 ...: end_request: I/O error, dev 16:00 (hdc), sector 511220 ...: hdc: command error: status=0x51 { DriveReady SeekComplete Error } ...: hdc: command error: error=0x51 ...: end_request: I/O error, dev 16:00 (hdc), sector 511224 ...: hdc: command error: status=0x51 { DriveReady SeekComplete Error } ...: hdc: command error: error=0x51 ...: end_request: I/O error, dev 16:00 (hdc), sector 511228 also here is some more information from /proc filesystem... [bdutta@localhost proc]$ cat ide/drivers ide-cdrom version 4.59 ide-floppy version 0.97 ide-disk version 1.10 [bdutta@localhost proc]$ cat ide/hdc/model LG DVD-ROM DRN-8080B [root@localhost proc]# cat ide/hdc/capacity 1338004 [root@localhost proc]# cat ide/hdc/driver ide-cdrom version 4.59 [root@localhost proc]# cat ide/hdc/identify (copied with line number from "vi") 1 85c0 0000 0000 0000 0000 0000 0000 0000 2 0000 0000 3230 3031 2f30 382f 3134 2020 3 2020 2020 2020 2020 0000 0000 0000 342e 4 3030 2020 2020 4c47 2020 2020 2020 4456 5 442d 524f 4d20 4452 4e2d 3830 3830 4220 .... [root@localhost proc]# cat ide/hdc/settings name value min max mode ---- ----- --- --- ---- breada_readahead 4 0 127 rw current_speed 0 0 69 rw dsc_overlap 0 0 1 rw file_readahead 0 0 2097151 rw ide_scsi 0 0 1 rw init_speed 0 0 69 rw io_32bit 0 0 3 rw keepsettings 0 0 1 rw max_kb_per_request 127 1 127 rw nice1 1 0 1 rw number 2 0 3 rw pio_mode write-only 0 255 w slow 0 0 1 rw unmaskirq 0 0 1 rw using_dma 0 0 1 rw