Note: This is a beta release of Red Hat Bugzilla 5.0. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Also email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback here.

Bug 164755

Summary: SysV IPC operation incorrectly handled on x86-64
Product: [Fedora] Fedora Reporter: Ulrich Drepper <drepper>
Component: straceAssignee: Roland McGrath <roland>
Status: CLOSED CURRENTRELEASE QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: ldv
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: 4.5.14 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-04-03 08:34:47 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 158504    
Attachments:
Description Flags
Remove special linux demux handling for x86-64
none
strace-4.5.13-drepper-x86_64-ipc.patch none

Description Ulrich Drepper 2005-08-01 00:03:30 UTC
Description of problem:
Unlike some/most other archs, x86-64 has real syscalls for the SysV IPC
operations.  This means the special #ifdef LINUX code in the various sys_*
functions must be avoided for x86-64.

Version-Release number of selected component (if applicable):
strace-4.5.12-1.x86_64

How reproducible:
always

Steps to Reproduce:
1.strace any code using msgsnd, msgrcv, ...
2.
3.
  
Actual results:
[pid 19816] msgsnd(98304, {6549608, umovestr: Input/output error
0x8}, 140737484181616, 0x4 /* MSG_??? */) = 0


Expected results:
[pid 24526] msgsnd(262149, {1, "\0\0\0\0"}, 4, 0) = 0


Additional info:
Attached patch should fix it.  There are also some syscall number bugs.

2005-07-31  Ulrich Drepper  <drepper@redhat.com>

	* linux/x86_64/syscallent.h: Fix syscall parameter count for msgrcv and
	msgctl.
	* ipc.c: Don't use LINUX specific code in sys_msgctl, sys_msgsnd,
	sys_msgrcv, sys_semop, sys_shmctl, sys_shmat, sys_shmdt.  Add
	appropriate non-demux code to sys_semtimedop.

Comment 1 Ulrich Drepper 2005-08-01 00:03:30 UTC
Created attachment 117330 [details]
Remove special linux demux handling for x86-64

Comment 2 Dmitry V. Levin 2005-08-08 17:21:02 UTC
Created attachment 117546 [details]
strace-4.5.13-drepper-x86_64-ipc.patch

Rediffed for strace-4.5.13.

Comment 3 Roland McGrath 2005-12-02 03:54:55 UTC
Your patch breaks it for 32-bit inferiors.
I've put in changes upstream that should do the trick.

Comment 4 Roland McGrath 2006-04-03 08:34:47 UTC
Fixed in fc4 update and in fc5.