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Bug 201462 - strace generates ptrace: umoven: Input/output error
strace generates ptrace: umoven: Input/output error
Product: Fedora
Classification: Fedora
Component: strace (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Roland McGrath
Brian Brock
Depends On:
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Reported: 2006-08-05 15:19 EDT by Jeff Johnson
Modified: 2007-11-30 17:11 EST (History)
0 users

See Also:
Fixed In Version: 4.5.14-3
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2006-08-23 05:09:44 EDT
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Jeff Johnson 2006-08-05 15:19:41 EDT

$ sudo strace -o /tmp/xxyz xrpm -qvv --requires --specfile time.spec
ptrace: umoven: Input/output error
ptrace: umoven: Input/output error
ptrace: umoven: Input/output error

(athough I've seen with every strace invocation in the last week or so)

SELinux is disabled if that matters.

$ rpm -qf /usr/bin/strace
Comment 1 Jeff Johnson 2006-08-05 15:23:58 EDT
$ rpm -q glibc
$ uname -a
Linux wellfleet.jbj.org 2.6.17-1.2307_FC6PAE #1 SMP Fri Jun 23 17:10:16 EDT 2006 i686 i686 i386 GNU/
Comment 2 Roland McGrath 2006-08-22 03:20:05 EDT
Please check the output.  Instead of -o, use > file 2>&1 and then look at the
part of the output near the "umoven" error message.  Does it refer to an
inappropriate syscall like sendto or another socket-related call that is not
what the program is really doing?

If so, this is the same as bug 202620, for which I already have a fix.
Comment 3 Jeff Johnson 2006-08-22 08:50:22 EDT
Here's the requested output:
set_thread_area({entry_number:-1 -> 6, base_addr:0x9c47850, limit:1048575, seg_32bit:1, contents:0, 
read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
set_tid_address(0x9c47898)              = 31449
sendto(163870880, ptrace: umoven: Input/output error
0xc, 163870800, MSG_OOB|MSG_PROXY|MSG_FIN|MSG_SYN|0x20000, ptrace: umoven: Input/output error
{...}, 3220895864) = 0
rt_sigaction(SIGRTMIN, {0x8450134, [], SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x8450080, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
Comment 4 Roland McGrath 2006-08-23 05:09:44 EDT
This should be fixed in 4.5.14-3.

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