RE: Size difference reported by /proc/partitions and lseek(SEEK_END) on block device
This should be fixed now, too, in CVS. Please try the next developers snapshot. We just downloaded cygwin-inst-20051213.tar.bz2 and tried the snapshot. Problem with lseek(SEEK_END) is resolve and the result returned corresponded with the /proc/partitions. Thank you. Joe -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Size difference reported by /proc/partitions and lseek(SEEK_END) on block device
On Dec 6 13:45, Loh, Joe wrote: Hello folks, We have created the following test case to illustrate the behavior that we observed. Hopefully someone out there can shed some light into the subject matter.This behavior is observed running CYGWIN_NT-5.2 P3PANDA 1.5.18(0.132/4/2) 2005-07-02 20:30 i686 unknown unknown Cygwin. Have you tried this with the latest snashot from http://cygwin.com/snapshots ? Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat, Inc. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
RE: Size difference reported by /proc/partitions and lseek(SEEK_END) on block device
Have you tried this with the latest snashot from http://cygwin.com/snapshots ? Corinna We just installed the cygwin-inst-20051207.tar.bz2 snapshot. The output in //proc/partitions is the same as the Cygwin Kernel 1.5.18. However, the lseek(SEEK_END) no longer works. When I rerun the C program it gave the following error. I even recompiled with the new snapshot just to make sure, still the same error. I have also attached the strace output for the lseekend. $ ./lseekend.exe /dev/sda lseek: Invalid argument Here's the output from the snapshot: major minor #blocks name 8 0 78124095 sda 8 1 15358108 sda1 8 2104422 sda2 8 3 16386300 sda3 Strace for lseekend: ** Program name: C:\cygwin\home\Administrator\lseekend.exe (pid 3220, ppid 1) App version: 1005.19, api: 0.147 DLL version: 1005.19, api: 0.147 DLL build:20051207 10:34:08SNP OS version: Windows NT-5.2 Heap size:402653184 Date/Time:2005-12-07 11:15:23 ** 74 592 [main] lseekend 3220 set_myself: myself-dwProcessId 3220 63 655 [main] lseekend 3220 time: 1133975723 = time (0) 5481203 [main] lseekend 3220 environ_init: GetEnvironmentStrings returned 0x2458B8 - =C:=C:\cygwin\bin 1861389 [main] lseekend 3220 environ_init: 0x420238: !C:=C:\cygwin\bin 791468 [main] lseekend 3220 environ_init: 0x420250: ALLUSERSPROFILE=C:\Documents and Settings\All Users 771545 [main] lseekend 3220 environ_init: 0x420288: APPDATA=C:\Documents and Settings\Administrator\Application Data 801625 [main] lseekend 3220 environ_init: 0x4202D0: CLIENTNAME=Console 771702 [main] lseekend 3220 environ_init: 0x4202E8: CLUSTERLOG=C:\WINDOWS\Cluster\cluster.log 781780 [main] lseekend 3220 environ_init: 0x420318: COLORFGBG=0;default;15 771857 [main] lseekend 3220 environ_init: 0x420338: COLORTERM=rxvt-xpm 781935 [main] lseekend 3220 environ_init: 0x420350: COMMONPROGRAMFILES=C:\Program Files\Common Files 782013 [main] lseekend 3220 environ_init: 0x420388: COMPUTERNAME=P3PANDA 772090 [main] lseekend 3220 environ_init: 0x4203A8: COMSPEC=C:\WINDOWS\system32\cmd.exe 782168 [main] lseekend 3220 environ_init: 0x4203D0: CVS_RSH=/bin/ssh 802248 [main] lseekend 3220 set_file_api_mode: File APIs set to OEM 402288 [main] lseekend 3220 parse_options: codepage (called func) 772365 [main] lseekend 3220 parse_options: tty 1001 782443 [main] lseekend 3220 parse_options: binmode 65536 772520 [main] lseekend 3220 parse_options: title 1 762596 [main] lseekend 3220 parse_options: returning 412637 [main] lseekend 3220 environ_init: 0x4203E8: CYGWIN=codepage:oem tty binmode title 772714 [main] lseekend 3220 environ_init: 0x420460: DISPLAY=:0 772791 [main] lseekend 3220 environ_init: 0x420470: EDITOR=vi 772868 [main] lseekend 3220 environ_init: 0x420480: FP_NO_HOST_CHECK=NO 812949 [main] lseekend 3220 getwinenv: can't set native for HOME= since no environ yet 803029 [main] lseekend 3220 mount_info::conv_to_posix_path: conv_to_posix_path (C:\cygwin\home\Administrator, no-keep-rel, no-add-slash) 483077 [main] lseekend 3220 normalize_win32_path: C:\cygwin\home\Administrator = normalize_win32_path (C:\cygwin\home\Administrator) 493126 [main] lseekend 3220 mount_info::conv_to_posix_path: /home/Administrator = conv_to_posix_path (C:\cygwin\home\Administrator) 1143240 [main] lseekend 3220 win_env::add_cache: posix /home/Administrator 413281 [main] lseekend 3220 win_env::add_cache: native HOME=C:\cygwin\home\Administrator 413322 [main] lseekend 3220 posify: env var converted to HOME=/home/Administrator 773399 [main] lseekend 3220 environ_init: 0x4204C0: HOME=/home/Administrator 773476 [main] lseekend 3220 environ_init: 0x420498: HOMEDRIVE=C: 773553 [main] lseekend 3220 environ_init: 0x420610: HOMEPATH=\Documents and Settings\Administrator 783631 [main] lseekend 3220 environ_init: 0x420648: HOSTNAME=P3PANDA 773708 [main] lseekend 3220 environ_init: 0x420660: INFOPATH=/usr/local/info:/usr/share/info:/usr/info: 793787 [main] lseekend 3220 environ_init: 0x420698: LOGONSERVER=\\P3PANDA 773864 [main] lseekend 3220 environ_init: 0x4206B8: MAKE_MODE=unix 783942 [main] lseekend 3220 environ_init: 0x4206D0: MANPATH=/usr/local/man:/usr/share/man:/usr/man::/usr/ssl/man 784020 [main] lseekend 3220 environ_init: 0x420718: NUMBER_OF_PROCESSORS=2 774097 [main] lseekend 3220 environ_init: 0x420738: OLDPWD=/usr/bin 774174 [main] lseekend 3220 environ_init: 0x420750: OS=Windows_NT 1344308 [main] lseekend 3220 getwinenv: can't set native for PATH= since no environ yet 504358 [main] lseekend 3220 normalize_posix_path: src . 484406 [main] lseekend 3220 mount_info::conv_to_posix_path:
Re: Size difference reported by /proc/partitions and lseek(SEEK_END) on block device
On Dec 7 11:17, Loh, Joe wrote: We just installed the cygwin-inst-20051207.tar.bz2 snapshot. The output in //proc/partitions is the same as the Cygwin Kernel 1.5.18. However, the lseek(SEEK_END) no longer works. When I rerun the C program it gave the following error. I even recompiled with the new snapshot just to make sure, still the same error. I have also attached the strace output for the lseekend. $ ./lseekend.exe /dev/sda lseek: Invalid argument Ouch. Thanks for the report. I have fixed a buggy condition which only allowed to seek to 1 byte below EOM in CVS. You should see the change in the next developers snapshot. Here's the output from the snapshot: major minor #blocks name 8 0 78124095 sda 8 1 15358108 sda1 8 2104422 sda2 8 3 16386300 sda3 The reason that /proc/partition contains wrong information is that the /proc/partition information uses an old, deprecated IOCTL call to evaluate the disk size by # of cylinders, # of tracks per sektor, etc. I didn't fix that so far but it's not overly complicated, so stay tuned. Thanks again, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat, Inc. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Size difference reported by /proc/partitions and lseek(SEEK_END) on block device
On Dec 7 19:12, Corinna Vinschen wrote: On Dec 7 11:17, Loh, Joe wrote: major minor #blocks name 8 0 78124095 sda 8 1 15358108 sda1 8 2104422 sda2 8 3 16386300 sda3 The reason that /proc/partition contains wrong information is that the /proc/partition information uses an old, deprecated IOCTL call to evaluate the disk size by # of cylinders, # of tracks per sektor, etc. I didn't fix that so far but it's not overly complicated, so stay tuned. This should be fixed now, too, in CVS. Please try the next developers snapshot. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat, Inc. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
RE: Size difference reported by /proc/partitions and lseek(SEEK_END) on block device
On Dec 7 11:17, Loh, Joe wrote: We just installed the cygwin-inst-20051207.tar.bz2 snapshot. The output in //proc/partitions is the same as the Cygwin Kernel 1.5.18. However, the lseek(SEEK_END) no longer works. When I rerun the C program it gave the following error. I even recompiled with the new snapshot just to make sure, still the same error. I have also attached the strace output for the lseekend. $ ./lseekend.exe /dev/sda lseek: Invalid argument Ouch. Thanks for the report. I have fixed a buggy condition which only allowed to seek to 1 byte below EOM in CVS. You should see the change in the next developers snapshot. Here's the output from the snapshot: major minor #blocks name 8 0 78124095 sda 8 1 15358108 sda1 8 2104422 sda2 8 3 16386300 sda3 The reason that /proc/partition contains wrong information is that the /proc/partition information uses an old, deprecated IOCTL call to evaluate the disk size by # of cylinders, # of tracks per sektor, etc. I didn't fix that so far but it's not overly complicated, so stay tuned. Thank you. We will give the next snapshot a try. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Size difference reported by /proc/partitions and lseek(SEEK_END) on block device
Hello folks,
We have created the following test case to illustrate the behavior that
we observed. Hopefully someone out there can shed some light into the
subject matter.This behavior is observed running CYGWIN_NT-5.2
P3PANDA 1.5.18(0.132/4/2) 2005-07-02 20:30 i686 unknown unknown Cygwin.
The block device size is different between the values reported in
/proc/partitions and lseek(SEEK_END). We have included a small 'C'
program that simply uses lseek to size the block device. Is this
expected of? If so, what accounts for the descrepancy? We have another
system with a 40G drives that doesn't show such discrepancy. We are
able to address the LBA beyond the range reported in /proc/partitions
using 'dd'. So, it's definitely addressable, but we ran into yet a
different issue as we approach the end of the block device using 'dd'.
We have open a different thread to address the 'dd' isssue under Error
reported dd'ing close of end of block device with skip
Here's the 'C' program listing:
#define _FILE_OFFSET_BITS 64
#include sys/types.h
#include sys/stat.h
#include fcntl.h
#include unistd.h
#include stdio.h
int main (int argc, char* const argv[])
{
int vFd;
off_t vSz;
if (argv[1] == NULL) {
printf(SYNTAX: %s DEVICE\n,argv[0]);
exit(1);
}
vFd = open(argv[1],O_RDONLY);
if (vFd 0) {
perror(open);
exit(1);
}
vSz = lseek(vFd, (off_t)0, SEEK_END);
if (vSz 0) {
perror(lseek);
exit(1);
}
close(vFd);
printf(%s size: %llu bytes (%llu of 1024-bytes
blocks)\n,argv[1],vSz,(vSz/1024));
exit(0);
}
Comparing the results from the lseek sizing with the /proc/partitions.
We got the following results:
$ cat /proc/partitions
major minor #blocks name
8 0 78124095 sda
8 1 15358108 sda1
8 2104422 sda2
8 3 16386300 sda3
Results from lseek(SEEK_END):
/dev/sda size: 800 bytes (78125000 of 1024-bytes blocks)
Here's the output from strace:
**
Program name: C:\cygwin\home\Administrator\lseekend.exe (pid 376, ppid
1)
App version: 1005.18, api: 0.132
DLL version: 1005.18, api: 0.132
DLL build:2005-07-02 20:30
OS version: Windows NT-5.2
Heap size:402653184
Date/Time:2005-12-06 13:41:02
**
63 451 [main] lseekend 376 set_myself: myself-dwProcessId 376
72 523 [main] lseekend 376 time: 1133898062 = time (0)
7951318 [main] lseekend 376 environ_init: 0x420238:
!C:=C:\cygwin\bin
1531471 [main] lseekend 376 environ_init: 0x420250:
ALLUSERSPROFILE=C:\Documents and Settings\All Users
981569 [main] lseekend 376 environ_init: 0x420288:
APPDATA=C:\Documents and Settings\Administrator\Application Data
951664 [main] lseekend 376 environ_init: 0x4202D0:
CLIENTNAME=ASTOR
911755 [main] lseekend 376 environ_init: 0x4202E8:
CLUSTERLOG=C:\WINDOWS\Cluster\cluster.log
921847 [main] lseekend 376 environ_init: 0x420318:
COLORFGBG=0;default;15
951942 [main] lseekend 376 environ_init: 0x420338:
COLORTERM=rxvt-xpm
932035 [main] lseekend 376 environ_init: 0x420350:
COMMONPROGRAMFILES=C:\Program Files\Common Files
942129 [main] lseekend 376 environ_init: 0x420388:
COMPUTERNAME=P3PANDA
942223 [main] lseekend 376 environ_init: 0x4203A8:
COMSPEC=C:\WINDOWS\system32\cmd.exe
942317 [main] lseekend 376 environ_init: 0x4203D0:
CVS_RSH=/bin/ssh
952412 [main] lseekend 376 set_file_api_mode: File APIs set to
OEM
622474 [main] lseekend 376 parse_options: codepage (called func)
942568 [main] lseekend 376 parse_options: tty 1001
932661 [main] lseekend 376 parse_options: binmode 65536
952756 [main] lseekend 376 parse_options: title 1
912847 [main] lseekend 376 parse_options: returning
482895 [main] lseekend 376 environ_init: 0x4203E8:
CYGWIN=codepage:oem tty binmode title
952990 [main] lseekend 376 environ_init: 0x420460: DISPLAY=:0
923082 [main] lseekend 376 environ_init: 0x420470: EDITOR=vi
963178 [main] lseekend 376 environ_init: 0x420480:
FP_NO_HOST_CHECK=NO
1003278 [main] lseekend 376 getwinenv: can't set native for HOME=
since no environ yet
1043382 [main] lseekend 376 mount_info::conv_to_posix_path:
conv_to_posix_path (C:\cygwin\home\Administrator, no-keep-rel,
no-add-slash)
593441 [main] lseekend 376 normalize_win32_path:
C:\cygwin\home\Administrator = normalize_win32_path
(C:\cygwin\home\Administrator)
613502 [main] lseekend 376 mount_info::conv_to_posix_path:
/home/Administrator = conv_to_posix_path (C:\cygwin\home\Administrator)
1433645 [main] lseekend 376 win_env::add_cache: posix
/home/Administrator
473692 [main] lseekend 376 win_env::add_cache: native
HOME=C:\cygwin\home\Administrator
493741 [main] lseekend 376 posify: env var converted to
HOME=/home/Administrator
973838 [main] lseekend 376 environ_init: 0x4204C0:
HOME=/home/Administrator
94
