Messages in this thread | | | Date | Sun, 13 Dec 1998 15:26:27 +0100 | From | Lorenzo Campedelli <> | Subject | Problems with ppa module |
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Hello, I hope somebody can give me any info about this: when I try to install the ppa module (with insmod or modprobe) I get randomly one of the following results (command line, possibly command output, /var/log/messages output) :
[CASE 1] : [root@betelgeuse /root]# strace -o strace.out0 modprobe ppa /lib/modules/2.1.131/scsi/ppa.o: init_module: Device or resource busy
Dec 13 14:31:39 localhost kernel: ppa: Version 2.01 Dec 13 14:31:39 localhost kernel: ppa: No devices found, aborting driver load. Dec 13 14:31:39 localhost kernel: scsi : 0 hosts.
[CASE 2] : [root@betelgeuse /root]# strace -o strace.out1 modprobe ppa
Dec 13 14:35:06 localhost kernel: ppa: Version 2.01 Dec 13 14:35:06 localhost kernel: ppa: Found device at ID 6, Attempting to use EPP 32 bit Dec 13 14:35:06 localhost kernel: ppa: Communication established with ID 6 using EPP 32 bit Dec 13 14:35:06 localhost kernel: scsi0 : Iomega parport ZIP drive Dec 13 14:35:06 localhost kernel: scsi : 1 host.
[CASE 3] : [root@betelgeuse /root]# strace -o strace.out2 modprobe ppa
Dec 13 14:36:16 localhost kernel: ppa: Version 2.01 Dec 13 14:36:16 localhost kernel: ppa: Found device at ID 6, Attempting to use EPP 32 bit Dec 13 14:36:16 localhost kernel: ppa: Communication established with ID 6 using EPP 32 bit Dec 13 14:36:16 localhost kernel: scsi0 : Iomega parport ZIP drive Dec 13 14:36:16 localhost kernel: scsi : 1 host. Dec 13 14:36:16 localhost kernel: Vendor: IOMEGA Model: ZIP 100 Rev: J.03 Dec 13 14:36:16 localhost kernel: Type: Direct-Access ANSI SCSI revision: 02 Dec 13 14:36:16 localhost kernel: Detected scsi removable disk sda at scsi0, channel 0, id 6, lun 0 Dec 13 14:36:16 localhost kernel: SCSI device sda: hdwr sector= 512 bytes. Sectors= 196608 [96 MB] [0.1 GB] Dec 13 14:36:16 localhost kernel: sda: Write Protect is off Dec 13 14:36:16 localhost kernel: sda: sda4
[CASE 4] : [root@betelgeuse /root]# strace -o strace.out3 modprobe ppa
Dec 13 14:47:23 localhost kernel: ppa: Version 2.01 Dec 13 14:47:23 localhost kernel: ppa: Found device at ID 6, Attempting to use EPP 32 bit Dec 13 14:47:23 localhost kernel: ppa: Communication established with ID 6 using EPP 32 bit Dec 13 14:47:23 localhost kernel: scsi0 : Iomega parport ZIP drive Dec 13 14:47:23 localhost kernel: scsi : 1 host. Dec 13 14:47:23 localhost kernel: Vendor: IOMEGA Model: ZIP 100 Rev: J.03 Dec 13 14:47:23 localhost kernel: Type: Direct-Access ANSI SCSI revision: 02 Dec 13 14:47:23 localhost kernel: Detected scsi removable disk sda at scsi0, channel 0, id 6, lun 0 Dec 13 14:47:23 localhost kernel: sda : READ CAPACITY failed. Dec 13 14:47:23 localhost kernel: sda : status = 0, message = 00, host = 1, driver = 27 Dec 13 14:47:23 localhost kernel: sda : sense not available. Dec 13 14:47:23 localhost kernel: sda : block size assumed to be 512 bytes, disk size 1GB. Dec 13 14:47:23 localhost kernel: sda: test WP failed, assume Write Protected Dec 13 14:47:23 localhost kernel: sda:SCSI disk error : host 0 channel 0 id 6 lun 0 return code = 27010000 Dec 13 14:47:23 localhost kernel: scsidisk I/O error: dev 08:00, sector 0 Dec 13 14:47:23 localhost kernel: unable to read partition table
Now, case 4 is rather rare (1/50), while the other 3 happen with the same frequency, but I obviously like only case 3 ;-) When I get case 3 then all goes like a charm and I got high speeds (~29Mb/min). The problem anyway persist using the slow parallel port modes.
This is now happening with 2.1.131-ac9, but used to be tha same since I begun using the Zip drive, I think 2.1.122. ppa.o is the only module in the chain (scsi and scsi-disk and parport related stuff are compiled in the kernel).
The strace.out? files are all equal, except for the pid numbers, and the only one terminating with _exit(1) was case 2.
I hope anybody has a solution or even a pointer for further investigations. If more info are needed let me know.
Thanks in advance Ciao, Lorenzo.
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