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Re: [Bug-tar] Problem with fstatat on AIX 7.1

From: Kevin Brott
Subject: Re: [Bug-tar] Problem with fstatat on AIX 7.1
Date: Fri, 2 Sep 2011 15:39:46 -0700
On Fri, Sep 2, 2011 at 11:25, Paul Eggert <address@hidden> wrote:
On 09/02/11 01:10, Kevin Brott wrote:

> using /bin/ksh ...

Yes, that's fine.

> kopen("archive", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) = 3
> fstatx(3, 0x20004640, 128, 010)                 = 0
> kfcntl(1, F_GETFL, 0x1006D360)                  = 67110914
> kfcntl(1, F_GETFL, 0x2FF22FFC)                  = 67110914
> src/tarkwrite(2, " s r c / t a r", 7)                   = 7
> : kwrite(2, " :  ", 2)                          = 2
> file1kwrite(2, " f i l e 1", 5)                 = 5
> : Cannot kwrite(2, " :   C a n n o t  ", 9)             = 9
> statkwrite(2, " s t a t", 4)                    = 4

My guess is that tar is invoking this:

 fstatat (AT_FDCWD, "file1", &st, 0)

and somehow fstatat is rejecting this call.
This could be due to a bug in our fstatat replacement, or in
AIX fstatat.  Can you please try to figure out which, by building
tar 1.26 with the following patch instead of the earlier
one that I sent you, and then re-running he test?  On a
properly-configured host, the command

echo xxxx > file1
TAR_OPTIONS=--numeric-owner truss ./tar chof archive file1

should output something like this:

fstatat (-100, "file1", 0x7fffc37ce430, 0) -> 0; st_size = 5

and should succeed.


Nope.  Applied patch to clean extract of the 1.26 source ...

$ echo xxxx > file1
$ TAR_OPTIONS=--numeric-owner truss src/tar chof archive file1
execve("src/tar", 0x2FF229C8, 0x200132A8)        argc: 4
sbrk(0x00000000)                                = 0x20004B5C
vmgetinfo(0x2FF21BB0, 7, 16)                    = 0
sbrk(0x00000000)                                = 0x20004B5C
sbrk(0x00000004)                                = 0x20004B5C
__libc_sbrk(0x00000000)                         = 0x20004B60
getuidx(4)                                      = 510
getuidx(2)                                      = 510
getuidx(1)                                      = 510
getgidx(4)                                      = 500
getgidx(2)                                      = 500
getgidx(1)                                      = 500
__loadx(0x01480080, 0x2FF21580, 0x00000A50, 0x2FF220E0, 0x00000000) = 0xD0544128
__loadx(0x01480180, 0x2FF21580, 0x00000A50, 0xF0A11960, 0xF0A11890) = 0xF0B00580
__loadx(0x07080000, 0xF0A11930, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B0152C
__loadx(0x07080000, 0xF0A11870, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B01538
__loadx(0x07080000, 0xF0A11940, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B01568
__loadx(0x07080000, 0xF0A11880, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B01574
__loadx(0x07080000, 0xF0A11900, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B01544
__loadx(0x07080000, 0xF0A118A0, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B0155C
__loadx(0x07080000, 0xF0A11910, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B01580
__loadx(0x07080000, 0xF0A11920, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B015B0
__loadx(0x07080000, 0xF0A118B0, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B01598
__loadx(0x07080000, 0xF0A118C0, 0xFFFFFFFF, 0xF0B00580, 0x00000000) = 0xF0B01610
getuidx(4)                                      = 510
getuidx(2)                                      = 510
getuidx(1)                                      = 510
getgidx(4)                                      = 500
getgidx(2)                                      = 500
getgidx(1)                                      = 500
__loadx(0x01480080, 0x2FF21580, 0x00000A50, 0x2FF220E0, 0x00000000) = 0xD0544128
getuidx(4)                                      = 510
getuidx(2)                                      = 510
getuidx(1)                                      = 510
getgidx(4)                                      = 500
getgidx(2)                                      = 500
getgidx(1)                                      = 500
__loadx(0x01480080, 0x2FF21580, 0x00000A50, 0x2FF220E0, 0x00000000) = 0xD0544128
getuidx(4)                                      = 510
getuidx(2)                                      = 510
getuidx(1)                                      = 510
getgidx(4)                                      = 500
getgidx(2)                                      = 500
getgidx(1)                                      = 500
__loadx(0x01480080, 0x2FF21580, 0x00000A50, 0x2FF220E0, 0x00000000) = 0xD0544128
getuidx(4)                                      = 510
getuidx(2)                                      = 510
getuidx(1)                                      = 510
getgidx(4)                                      = 500
getgidx(2)                                      = 500
getgidx(1)                                      = 500
__loadx(0x01480080, 0x2FF21580, 0x00000A50, 0x2FF220E0, 0x00000000) = 0xD0544128
getuidx(4)                                      = 510
getuidx(2)                                      = 510
getuidx(1)                                      = 510
getgidx(4)                                      = 500
getgidx(2)                                      = 500
getgidx(1)                                      = 500
__loadx(0x01480080, 0x2FF21580, 0x00000A50, 0x2FF220E0, 0x00000000) = 0xD0544128
kfcntl(0, F_GETFD, 0x20004110)                  = 0
kfcntl(1, F_GETFD, 0x2FF22FFC)                  = 0
kfcntl(2, F_GETFD, 0x2FF22FFC)                  = 0
_sigaction(20, 0x2FF228A0, 0x2FF228B0)          = 0
kopen("archive", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) = 3
fstatx(3, 0x20004660, 128, 010)                 = 0
fstatat (kwrite(2, " f s t a t a t   (", 9)             = 9
-kwrite(2, " -", 1)                             = 1
2kwrite(2, " 2", 1)                             = 1
, "kwrite(2, " ,   "", 3)                               = 3
file1kwrite(2, " f i l e 1", 5)                 = 5
", kwrite(2, " " ,  ", 3)                               = 3
2ff22668kwrite(2, " 2 f f 2 2 6 6 8", 8)                = 8
, kwrite(2, " ,  ", 2)                          = 2
0kwrite(2, " 0", 1)                             = 1
) -> kwrite(2, " )   - >  ", 5)                 = 5
-kwrite(2, " -", 1)                             = 1
1kwrite(2, " 1", 1)                             = 1
; kwrite(2, " ;  ", 2)                          = 2
access("/usr/lib/nls/msg/en_US/libc.cat", 0)    = 0
_getpid()                                       = 12845536
kopen("/usr/lib/nls/msg/en_US/libc.cat", O_RDONLY) = 4
kioctl(4, 22528, 0x00000000, 0x00000000)        Err#25 ENOTTY
kfcntl(4, F_SETFD, 0x00000001)                  = 0
kioctl(4, 22528, 0x00000000, 0x00000000)        Err#25 ENOTTY
kread(4, "\0\001 ù\007\007 I S O 8".., 4096)    = 4096
lseek(4, 0, 1)                                  = 4096
lseek(4, 0, 1)                                  = 4096
lseek(4, 0, 1)                                  = 4096
_getpid()                                       = 12845536
lseek(4, 0, 1)                                  = 4096
lseek(4, 4373, 0)                               = 4373
kread(4, " A   s y s t e m   c a l".., 4096)    = 4096
close(4)                                        = 0
errno = kwrite(2, " e r r n o   =  ", 8)                = 8
22kwrite(2, " 2 2", 2)                          = 2
 (kwrite(2, "   (", 2)                          = 2
A system call received a parameter that is not valid.kwrite(2, " A   s y s t e m   c a l".., 53)        = 53
)
kwrite(2, " )\n", 2)                            = 2
kfcntl(1, F_GETFL, 0x1006D3F8)                  = 67110914
kfcntl(1, F_GETFL, 0x2FF22FFC)                  = 67110914
src/tarkwrite(2, " s r c / t a r", 7)                   = 7
: kwrite(2, " :  ", 2)                          = 2
file1kwrite(2, " f i l e 1", 5)                 = 5
: Cannot kwrite(2, " :   C a n n o t  ", 9)             = 9
statkwrite(2, " s t a t", 4)                    = 4
access("/usr/lib/nls/msg/en_US/libc.cat", 0)    = 0
_getpid()                                       = 12845536
kopen("/usr/lib/nls/msg/en_US/libc.cat", O_RDONLY) = 4
kioctl(4, 22528, 0x00000000, 0x00000000)        Err#25 ENOTTY
kfcntl(4, F_SETFD, 0x00000001)                  = 0
kioctl(4, 22528, 0x00000000, 0x00000000)        Err#25 ENOTTY
kread(4, "\0\001 ù\007\007 I S O 8".., 4096)    = 4096
lseek(4, 0, 1)                                  = 4096
lseek(4, 0, 1)                                  = 4096
lseek(4, 0, 1)                                  = 4096
_getpid()                                       = 12845536
lseek(4, 0, 1)                                  = 4096
lseek(4, 4373, 0)                               = 4373
kread(4, " A   s y s t e m   c a l".., 4096)    = 4096
close(4)                                        = 0
: kwrite(2, " :  ", 2)                          = 2
A system call received a parameter that is not valid.kwrite(2, " A   s y s t e m   c a l".., 53)        = 53

kwrite(2, "\n", 1)                              = 1
kfcntl(2, F_GETFL, 0x2FF22FFC)                  = 67110914
kwrite(3, "\0\0\0\0\0\0\0\0\0\0\0\0".., 10240)  = 10240
close(3)                                        = 0
kfcntl(1, F_GETFL, 0x100728D0)                  = 67110914
kfcntl(1, F_GETFL, 0x2FF22FFC)                  = 67110914
src/tarkwrite(2, " s r c / t a r", 7)                   = 7
: kwrite(2, " :  ", 2)                          = 2
Exiting with failure status due to previous errorskwrite(2, " E x i t i n g   w i t h".., 50)   = 50

kwrite(2, "\n", 1)                              = 1
kfcntl(2, F_GETFL, 0x2FF22FFC)                  = 67110914
kfcntl(1, F_GETFL, 0x00000002)                  = 67110914
close(1)                                        = 0
close(2)                                        = 0
_exit(2)

fstatat (-2, "file1", 2ff22688, 0) -> -1; errno = 22 (A system call received a parameter that is not valid.)
src/tar: file1: Cannot stat: A system call received a parameter that is not valid.
src/tar: Exiting with failure status due to previous errors

$ src/tar cf archive file1
fstatat (-2, "file1", 2ff226a8, 1) -> 0; st_size = 5

--
# include <stddisclaimer.h>
/* Kevin  Brott <address@hidden> */


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