Patch-ID# 103642-05
Keywords: lwplock mutex_lock strwrite lm_get_sysid klmmod lm_sysid threads 
Synopsis: SunOS 5.5.1_ppc: kernel patch
Date: Feb/19/97

Solaris Release: 2.5.1_ppc

SunOS release: 5.5.1_ppc

Unbundled Product:

Unbundled Release:

Xref: This patch available for SPARC as patch 103640
Xref: This patch available for x86 as patch 103641

Topic: SunOS 5.5.1_ppc: kernel patch

BugId's fixed with this patch: 1199624 1223900 1227580 1233088 1241118 1247172 1247572 1251423 1251430 1253366 1256610 1258191 1260766 1260769 1260959 1260982 1262694 1264333 1265396 1266767 4007542 4009069

Changes incorporated in this version: 1233088 1265396 4009069

Relevant Architectures: ppc

Patches accumulated and obsoleted by this patch: 103660-02 103922-05

Patches which conflict with this patch:

Patches required with this patch:

Obsoleted by:

Files included with this patch:

/kernel/genunix
/kernel/misc/klmmod
/kernel/misc/klmops
/kernel/sys/doorfs
/platform/prep/kernel/unix
/usr/lib/libthread.so.1

Problem Description:

4009069 2.5 TCP generates wrong checksum and never recovers from error
1265396 Ctrl-C typed to dbx is sent to child debugee (not to dbx) when app uses sigwait
1233088 ioctl(PIOCPSINFO) is 100 times too slow on multi-threaded processes

(from 103642-04)

4007542 fix to the build problem where build generates strsubr.c compiler warning
1266767 F_GETLK returns incorrect value on 2.x if a lock is pending
1227580 cannot support high TCP connection rates: noncaput errors reported by the driver
1223900 alarm(2) doesn't work properly with large arguments

(from 103642-03)

1264333 _lwp_suspend()/continue() interrupts blocking system calls
1262694 Solaris hangs due to memory leak in kmem_alloc-8, kmem_alloc_24 and kmem_alloc-40
1260766 Solaris 2.5.1 cannot handle kernel dumps bigger than 2GB
1247572 lkmgr ran into a BAD TRAP while running tpcb workload from 2 nodes
1199624 queuerun indirectly causes fork() call to hang

(from 103642-02)

1260982 rwnext & infonext fix (waiting to enter inner perimeter)

	rwnext returns EGAIN which is causing a big applications to hang.

1260959 Streams information delayed 50-100 ms until dbri driver schedules it
1256610 strwrite fails to call queuerun on error path (a performance hit)

(from 103642-01)

1251423 panic - recursive mutex_enter on lwplock

(from 103660-02)

	This patch-rev now includes /kernel/misc/klmops, a module
	that was inadvertently dropped from the previous rev.

(from 103660-01)

1251430 Solaris 2.5 system panicked with message "lm_get_sysid: too many lm_sysid's"

(from 103922-05)

1258191 msgrcv was not interrupted by thr_suspend(SIGLWP).

(from 103922-04)

1260769 MT application is dropping signal events when run on multi-processor systems

(from 103922-03)

1247172 Threads losing signals when preempted

(from 103922-02)

1241118 libthread panic in thr_join, handling of zombie threads seems to be broken

(from 103922-01)

1253366 threads deadlock occurs in delivering SIGIO

Patch Installation Instructions:
--------------------------------
Refer to the Install.info file within the patch for instructions on
using the generic 'installpatch' and 'backoutpatch' scripts provided
with each patch. Any other special or non-generic installation
instructions should be described below.

Special Install Instructions:
-----------------------------

Reboot the system after patch installation.