>From glibc:
int
__libc_openat (int fd, const char *file, int oflag, ...)
{
mode_t mode = 0;
if (__OPEN_NEEDS_MODE (oflag))
{
va_list arg;
va_start (arg, oflag);
mode = va_arg (arg, mode_t);
va_end (arg);
}
return SYSCALL_CANCEL (openat, fd, file, oflag, mode);
}
/* Detect if open needs mode as a third argument (or for openat as a fourth
argument). */
#ifdef __O_TMPFILE
# define __OPEN_NEEDS_MODE(oflag) \
(((oflag) & O_CREAT) != 0 || ((oflag) & __O_TMPFILE) == __O_TMPFILE)
#else
# define __OPEN_NEEDS_MODE(oflag) (((oflag) & O_CREAT) != 0)
#endif
So, very likely __OPEN_NEEDS_MODE does not support O_TMPFILE on trusty. So,
this specific test will always fail on trusty. I wonder if this might cause
issues in the real world, and, then, justify a glibc update on trusty ESM.
Cascardo.
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https://bugs.launchpad.net/bugs/1785207
Title:
openat03 in ubuntu_ltp_syscall failed with Trusty
Status in ubuntu-kernel-tests:
Triaged
Status in linux package in Ubuntu:
Triaged
Bug description:
<<<test_start>>>
tag=openat03 stime=1533289807
cmdline="openat03"
contacts=""
analysis=exit
<<<test_output>>>
openat03 0 TINFO : creating a file with O_TMPFILE flag
incrementing stop
openat03 0 TINFO : writing data to the file
openat03 0 TINFO : file size is '4096'
openat03 0 TINFO : looking for the file in '.'
openat03 0 TINFO : file not found, OK
openat03 0 TINFO : renaming '/tmp/ltp-5saSOZV2Gx/opea7u155/#286254
(deleted)' -> 'tmpfile'
openat03 0 TINFO : found a file: tmpfile
openat03 1 TPASS : single file tests passed
openat03 0 TINFO : create files in multiple directories
openat03 0 TINFO : removing test directories
openat03 0 TINFO : writing/reading temporary files
openat03 0 TINFO : closing temporary files
openat03 2 TPASS : multiple files tests passed
openat03 0 TINFO : create multiple directories, link files into them
openat03 0 TINFO : and check file permissions
openat03 3 TFAIL : openat03.c:223: file mode read 0, but expected 7777
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=1 corefile=no
cutime=0 cstime=0
<<<test_end>>>
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-153-generic 3.13.0-153.203
ProcVersionSignature: User Name 3.13.0-153.203-generic 3.13.11-ckt39
Uname: Linux 3.13.0-153-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Aug 3 07:50 seq
crw-rw---- 1 root audio 116, 33 Aug 3 07:50 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3.29
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Fri Aug 3 09:49:41 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-153-generic
root=UUID=41f2a2b1-0082-4a56-ad3b-9f99ca574aeb ro
RelatedPackageVersions:
linux-restricted-modules-3.13.0-153-generic N/A
linux-backports-modules-3.13.0-153-generic N/A
linux-firmware 1.127.24
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-xenial
dmi.modalias:
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-xenial:cvnQEMU:ct1:cvrpc-i440fx-xenial:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-xenial
dmi.sys.vendor: QEMU
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