Bug 129416

Summary:	Can't remote login
Product:	[Fedora] Fedora	Reporter:	H.J. Lu <hongjiu.lu>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED DUPLICATE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	barryn, riel
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-02-21 19:05:02 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description H.J. Lu 2004-08-08 17:20:16 UTC

After running RHEL 4 alpha 4 for a few days with many
rlogin/ssh sessions into the machine, I got

[hjl@gnu hjl]$ ssh gnu-10
hjl@gnu-10's password:
Warning: Remote host failed or refused to allocate a pseudo tty.


It happens on both ia32 and EM64T.

Comment 1 H.J. Lu 2004-08-09 14:50:15 UTC

It looks like a glibc bug. I got

Aug  9 07:46:57 gnu-10 sshd[3684]: error: openpty: No such file or
directory
Aug  9 07:46:57 gnu-10 sshd[3684]: error: session_pty_req: session 0
alloc failed

Comment 2 H.J. Lu 2004-08-09 15:10:28 UTC

It looks like a kernel bug:

[pid  5879] open("/dev/ptmx", O_RDWR)   = -1 EIO (Input/output error)
[pid  5879] open("/dev/ptyp0", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp1", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp2", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp3", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp4", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp5", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp6", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp7", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp8", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptyp9", O_RDWR)  = -1 ENXIO (No such device or
address)
[pid  5879] open("/dev/ptypa", O_RDWR)  = -1 ENXIO (No such device or
address)

I saw it on 2.6.7-1.509 and 2.6.7-1.501.

Comment 3 Arjan van de Ven 2004-08-09 15:13:23 UTC

[pid  5879] open("/dev/ptmx", O_RDWR)   = -1 EIO (Input/output error)

that leass you to think it's a kernel bug

well... maybe maybe not I'm not convinced yet

Comment 4 Arjan van de Ven 2004-08-09 15:13:50 UTC

bug 128154 has a more detailed analysis fwiw

Comment 5 H.J. Lu 2004-08-09 15:30:57 UTC


*** This bug has been marked as a duplicate of 128154 ***

Comment 6 Red Hat Bugzilla 2006-02-21 19:05:02 UTC

Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.