Roland McGrath 7d94143291 Fix spurious syscall tracing after PTRACE_DETACH + PTRACE_ATTACH ... When PTRACE_SYSCALL was used and then PTRACE_DETACH is used, the TIF_SYSCALL_TRACE flag is left set on the formerly-traced task. This means that when a new tracer comes along and does PTRACE_ATTACH, it's possible he gets a syscall tracing stop even though he's never used PTRACE_SYSCALL. This happens if the task was in the middle of a system call when the second PTRACE_ATTACH was done. The symptom is an unexpected SIGTRAP when the tracer thinks that only SIGSTOP should have been provoked by his ptrace calls so far. A few machines already fixed this in ptrace_disable (i386, ia64, m68k). But all other machines do not, and still have this bug. On x86_64, this constitutes a regression in IA32 compatibility support. Since all machines now use TIF_SYSCALL_TRACE for this, I put the clearing of TIF_SYSCALL_TRACE in the generic ptrace_detach code rather than adding it to every other machine's ptrace_disable. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-09-10 18:57:47 -07:00
..
cpufreq	[IA64] Fix processor_get_freq	2007-08-15 13:20:38 -07:00
acpi-ext.c
acpi-processor.c	[IA64] Fix using uninitialized data in _PDC setup	2007-05-24 10:14:30 -07:00
acpi.c	[IA64] Fix wrong assumption in acpi_gsi_to_irq	2007-07-26 14:27:42 -07:00
asm-offsets.c	[IA64] Convert to generic timekeeping/clocksource	2007-07-20 11:22:30 -07:00
audit.c	[PATCH] audit signal recipients	2007-05-11 05:38:25 -04:00
brl_emu.c
crash_dump.c
crash.c	[IA64] kdump on INIT needs multi-nodes sync-up (v.2)	2007-05-14 15:55:39 -07:00
cyclone.c	cyclone.c: silly use of volatile, __iomem fixes	2007-07-26 11:11:57 -07:00
efi_stub.S
efi.c	handle kernelcore=: generic	2007-07-17 10:22:59 -07:00
entry.h
entry.S	[IA64] fallocate system call	2007-07-19 13:48:00 -07:00
err_inject.c	[IA64] typo s/kenrel/kernel/	2007-05-10 09:35:30 -07:00
esi_stub.S
esi.c
fsys.S	[IA64] Convert to generic timekeeping/clocksource	2007-07-20 11:22:30 -07:00
fsyscall_gtod_data.h	[IA64] Convert to generic timekeeping/clocksource	2007-07-20 11:22:30 -07:00
gate-data.S
gate.lds.S
gate.S	[IA64] Stop bit for brl instruction	2007-07-09 13:37:44 -07:00
head.S	[IA64] fix section mismatch warnings	2007-07-25 13:08:26 -07:00
ia64_ksyms.c
init_task.c	Remove fs.h from mm.h	2007-07-29 17:09:29 -07:00
iosapic.c	[IA64] Fix wrong access to irq_desc[] in iosapic_register_intr().	2007-08-01 11:57:59 -07:00
irq_ia64.c	[IA64] Fix unexpected interrupt vector handling	2007-08-28 16:01:21 -07:00
irq_lsapic.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
irq.c	[IA64] SN2 needs platform specific irq_to_vector() function.	2007-08-13 10:31:26 -07:00
ivt.S	[IA64] relax per-cpu TLB requirement to DTC	2007-02-06 15:04:48 -08:00
jprobes.S
kprobes.c	jprobes: make jprobes a little safer for users	2007-07-19 10:04:44 -07:00
machine_kexec.c	[IA64] Fix NULL-pointer dereference in ia64_machine_kexec()	2007-02-05 14:06:44 -08:00
machvec.c	[IA64] Ensure that machvec is set up takes place before serial console	2007-07-25 11:12:47 -07:00
Makefile
mca_asm.S	[IA64] Support multiple CPUs going through OS_MCA	2007-07-11 11:50:11 -07:00
mca_drv_asm.S	[IA64] Don't set psr.ic and psr.i simultaneously	2007-07-09 10:30:28 -07:00
mca_drv.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
mca_drv.h
mca.c	[IA64] Clean up CPE handler registration	2007-08-13 13:22:45 -07:00
minstate.h
module.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
msi_ia64.c	[IA64] Support irq migration across domain	2007-07-17 09:57:42 -07:00
numa.c
pal.S
palinfo.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
patch.c	[IA64] remove per-cpu ia64_phys_stacked_size_p8	2007-02-06 15:04:18 -08:00
perfmon_default_smpl.c
perfmon_generic.h
perfmon_itanium.h
perfmon_mckinley.h	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
perfmon_montecito.h
perfmon.c	remove unused TIF_NOTIFY_RESUME flag	2007-07-31 15:39:38 -07:00
process.c	[IA64] disable irq's and check need_resched before safe_halt	2007-08-13 10:17:23 -07:00
ptrace.c	Fix spurious syscall tracing after PTRACE_DETACH + PTRACE_ATTACH	2007-09-10 18:57:47 -07:00
relocate_kernel.S	[IA64] Removal of percpu TR cleanup in kexec code	2007-05-08 10:00:28 -07:00
sal.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
salinfo.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
semaphore.c
setup.c	[IA64] Enable early console for Ski simulator	2007-09-01 02:50:39 -07:00
sigframe.h	[IA64] Add TIF_RESTORE_SIGMASK	2007-05-08 14:51:59 -07:00
signal.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6	2007-05-09 13:38:45 -07:00
smp.c	[IA64] Allow smp_call_function_single() to current cpu	2007-07-30 16:26:45 -07:00
smpboot.c	[IA64] SN: Add support for CPU disable	2007-09-01 02:49:57 -07:00
sys_ia64.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
time.c	[IA64] ITC: Reduce rating for ITC clock if ITCs are drifty	2007-08-01 14:02:36 -07:00
topology.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
traps.c	Report that kernel is tainted if there was an OOPS	2007-07-17 10:23:02 -07:00
unaligned.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
uncached.c
unwind_decoder.c
unwind_i.h
unwind.c	[IA64] Correct unwind validation code	2007-06-26 13:33:10 -07:00
vmlinux.lds.S	[IA64] get back PT_IA_64_UNWIND program header	2007-08-13 14:50:35 -07:00