Received-SPF: neutral (google.com: 209.85.218.52 is neither permitted nor denied by best guess record for domain of alanpost@sunflowerriver.org) client-ip=209.85.218.52;
Date: Fri, 30 Sep 2011 14:53:51 -0601
From: ".alyn.post." <alyn.post@lodockikumazvati.org>
To: lojban@googlegroups.com
Subject: Re: [lojban] Someone wanna debug our jbofihe problems?
Message-ID: <20110930205415.GP29295@sunflowerriver.org>
Mail-Followup-To: lojban@googlegroups.com
References: <20110929044617.GL11528@stodi.digitalkingdom.org>
 <CAEimHHBjzDku7fzXGObjHTZn-BiAouWUp=B2t-ox9t9e4aYBEw@mail.gmail.com>
 <20110929125138.GS29295@sunflowerriver.org>
 <32514220.68.1317357919910.JavaMail.geo-discussion-forums@yqlb4>
 <CA+gZtgK6Ws+pRhftsvQS6J8qBmQ4YhP4P6WgvtnrUJ4NtuU=FA@mail.gmail.com>
 <CA+gZtgLiiYUeGfj-Xp0CbbhbFuijEh52t71ptpuSizo5K8pZug@mail.gmail.com>
 <20110930155727.GK29295@sunflowerriver.org>
 <CAEimHHBnPQVN0YTmeVHhoSCP0wrpCBPNoCVreSUoot+PnpdgMg@mail.gmail.com>
 <20110930162540.GM29295@sunflowerriver.org>
 <20110930202012.GE20043@stodi.digitalkingdom.org>
MIME-Version: 1.0
In-Reply-To: <20110930202012.GE20043@stodi.digitalkingdom.org>
Reply-To: lojban@googlegroups.com
Precedence: list
Mailing-list: list lojban@googlegroups.com; contact lojban+owners@googlegroups.com
Sender: lojban@googlegroups.com
Content-Type: text/plain; charset=ISO-8859-1
Content-Disposition: inline
X-Spam_score: 2.1
X-Spam_score_int: 21
X-Spam_bar: ++
X-Spam-Report: Spam detection software, running on the system "stodi.digitalkingdom.org", has
 identified this incoming email as possible spam.  The original message
 has been attached to this so you can view it (if it isn't spam) or label
 similar future email.  If you have any questions, see
 the administrator of that system for details.
 
 Content preview:  I don't have an account, but would be happy to debug this.
    Depending an what version of jbofi'e you're using, the mmap code did some
    pretty odd error checking. I wouldn't be surprised if that oddness continued
    into using it, I see it is dying on a no-op seek command. [...] 
 
 Content analysis details:   (2.1 points, 5.0 required)
 
  pts rule name              description
 ---- ---------------------- --------------------------------------------------
  1.4 BUG6152_INVALID_DATE_TZ_ABSURD BUG6152_INVALID_DATE_TZ_ABSURD
  0.6 INVALID_DATE_TZ_ABSURD Invalid Date: header (timezone does not exist)
 -0.0 SPF_PASS               SPF: sender matches SPF record
  0.1 DKIM_SIGNED            Message has a DKIM or DK signature, not necessarily valid
 -0.1 DKIM_VALID             Message has at least one valid DKIM or DK signature

I don't have an account, but would be happy to debug this.

Depending an what version of jbofi'e you're using, the mmap
code did some pretty odd error checking.   I wouldn't be
surprised if that oddness continued into using it, I see it
is dying on a no-op seek command.

I'd need access to both the kernel syscall manpages and the
source code.

-Alan

On Fri, Sep 30, 2011 at 01:20:12PM -0700, Robin Lee Powell wrote:
> Yes, but unfortunately I have no idea what's causing it or how to
> fix it.  I'm told a reload usually clears it up.
> 
> Oh, huh, I can replicate on the command line.  Hmmm...
> 
> It happens about one time in five.
> 
> There is no memory pressure on the host.  There are no SELinux
> errors (in fact, turning SELinux off doesn't fix it).
> 
> I seriously have no idea what's up here at all.  Anyone who wants an account to
> investigate it is welcome to it.  An strace of a fail and then a good run are
> below (both are short).
> 
> Interestingly, it's not actually on the mmap that it fails.  *shrug*
> 
> -Robin
> 
> - -----------------------------------------------------------
> rlpowell@jukni> echo "mi klama" | strace -ff /usr/local/bin/jbofihe -x 2>&1                                     
> execve("/usr/local/bin/jbofihe", ["/usr/local/bin/jbofihe", "-x"], [/* 45 vars */]) = 0
> brk(0)                                  = 0xb84000
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4ead000
> access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
> open("/etc/ld.so.cache", O_RDONLY)      = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=35848, ...}) = 0
> mmap(NULL, 35848, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b77a4eae000
> close(3)                                = 0
> open("/lib64/libc.so.6", O_RDONLY)      = 3
> read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260\24\2k6\0\0\0"..., 832) = 832
> fstat(3, {st_mode=S_IFREG|0755, st_size=1951736, ...}) = 0
> mmap(0x366b000000, 3773688, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x366b000000
> mprotect(0x366b18f000, 2097152, PROT_NONE) = 0
> mmap(0x366b38f000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18f000) = 0x366b38f000
> mmap(0x366b394000, 21752, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x366b394000
> close(3)                                = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4eb7000
> mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4eb8000
> arch_prctl(ARCH_SET_FS, 0x2b77a4eb7b40) = 0
> mprotect(0x366b38f000, 16384, PROT_READ) = 0
> mprotect(0x366ae1e000, 4096, PROT_READ) = 0
> munmap(0x2b77a4eae000, 35848)           = 0
> rt_sigaction(SIGABRT, {0x401920, [ABRT], SA_RESTORER|SA_RESTART, 0x366b035350}, {SIG_DFL, [], 0}, 8) = 0
> rt_sigaction(SIGBUS, {0x401920, [BUS], SA_RESTORER|SA_RESTART, 0x366b035350}, {SIG_DFL, [], 0}, 8) = 0
> rt_sigaction(SIGSEGV, {0x401920, [SEGV], SA_RESTORER|SA_RESTART, 0x366b035350}, {SIG_DFL, [], 0}, 8) = 0
> fstat(0, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4eae000
> read(0, "mi klama\n", 4096)             = 9
> brk(0)                                  = 0xb84000
> brk(0xba5000)                           = 0xba5000
> brk(0)                                  = 0xba5000
> read(0, "", 4096)                       = 0
> fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4eaf000
> open("/usr/local/lib/jbofihe/smujmaji.dat", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=241214, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4eb0000
> read(3, "\0\0006B\5\4\5\5\5\5\5\4\5\5\4\4\4\6\5\5\4\6\5\6\5\3\4\6\4\4\4\5"..., 4096) = 4096
> mmap(NULL, 225280, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4eba000
> read(3, "\4\4\4\5\5\5\4\5\4\7\4\6\4\4\4\10\5\4\5\10\4\6\5\6\4\10\4\4\5\7\4\5"..., 4096) = 4096
> read(3, "\3\3\5\5\5\5\5\5\5\5\5\5\4\3\7\3\6\4\5\3\7\3\3\2\5\5\5\3\10\4\5\4"..., 4096) = 4096
> read(3, "\5\5\4\5\5\5\5\5\4\5\4\5\4\5\5\5\4\5\4\5\5\5\5\5\5\5\5\5\5\5\4\5"..., 4096) = 4096
> read(3, "\6\24\5\5\6\t\6\10\6\32\7\f\5\5\6\7\6\20\5\7\6\t\6\6\6\r\5\4\6\6\6\16"..., 4096) = 4096
> read(3, "\6\37\7\r\6\"\7\17\5\f\6\v\6\16\5\6\6\10\6\25\7\v\5\5\6\16\6\10\5\5\6\7"..., 4096) = 4096
> read(3, "\6\21\5\5\6\17\6\5\6\22\6\23\5\10\6\n\6\v\6\32\6\r\5\3\6\7\6\r\6\24\5\6"..., 4096) = 4096
> fstat(3, {st_mode=S_IFREG|0644, st_size=241214, ...}) = 0
> lseek(3, 0, SEEK_CUR)                   = 28672
> mmap(NULL, 241214, PROT_READ, MAP_SHARED, 3, 0) = 0x2b77a4ef1000
> dup(2)                                  = 4
> fcntl(4, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
> fstat(4, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b77a4f2c000
> lseek(4, 0, SEEK_CUR)                   = -1 ESPIPE (Illegal seek)
> write(4, "Could not mmap the dictionary da"..., 35Could not mmap the dictionary data
> ) = 35
> write(4, ": Success\n", 10: Success
> )             = 10
> close(4)                                = 0
> munmap(0x2b77a4f2c000, 4096)            = 0
> write(1, "[([", 3[([)                      = 3
> exit_group(1)                           = ?
> - -----------------------------------------------------------
> rlpowell@jukni> echo "mi klama" | strace -ff /usr/local/bin/jbofihe -x 2>&1                                     
> execve("/usr/local/bin/jbofihe", ["/usr/local/bin/jbofihe", "-x"], [/* 45 vars */]) = 0
> brk(0)                                  = 0x10a5000
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b9034160000
> access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
> open("/etc/ld.so.cache", O_RDONLY)      = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=35848, ...}) = 0
> mmap(NULL, 35848, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b9034161000
> close(3)                                = 0
> open("/lib64/libc.so.6", O_RDONLY)      = 3
> read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260\24\2k6\0\0\0"..., 832) = 832
> fstat(3, {st_mode=S_IFREG|0755, st_size=1951736, ...}) = 0
> mmap(0x366b000000, 3773688, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x366b000000
> mprotect(0x366b18f000, 2097152, PROT_NONE) = 0
> mmap(0x366b38f000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18f000) = 0x366b38f000
> mmap(0x366b394000, 21752, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x366b394000
> close(3)                                = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b903416a000
> mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b903416b000
> arch_prctl(ARCH_SET_FS, 0x2b903416ab40) = 0
> mprotect(0x366b38f000, 16384, PROT_READ) = 0
> mprotect(0x366ae1e000, 4096, PROT_READ) = 0
> munmap(0x2b9034161000, 35848)           = 0
> rt_sigaction(SIGABRT, {0x401920, [ABRT], SA_RESTORER|SA_RESTART, 0x366b035350}, {SIG_DFL, [], 0}, 8) = 0
> rt_sigaction(SIGBUS, {0x401920, [BUS], SA_RESTORER|SA_RESTART, 0x366b035350}, {SIG_DFL, [], 0}, 8) = 0
> rt_sigaction(SIGSEGV, {0x401920, [SEGV], SA_RESTORER|SA_RESTART, 0x366b035350}, {SIG_DFL, [], 0}, 8) = 0
> fstat(0, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b9034161000
> read(0, "mi klama\n", 4096)             = 9
> brk(0)                                  = 0x10a5000
> brk(0x10c6000)                          = 0x10c6000
> brk(0)                                  = 0x10c6000
> read(0, "", 4096)                       = 0
> fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b9034162000
> open("/usr/local/lib/jbofihe/smujmaji.dat", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=241214, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b9034163000
> read(3, "\0\0006B\5\4\5\5\5\5\5\4\5\5\4\4\4\6\5\5\4\6\5\6\5\3\4\6\4\4\4\5"..., 4096) = 4096
> mmap(NULL, 225280, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b903416d000
> read(3, "\4\4\4\5\5\5\4\5\4\7\4\6\4\4\4\10\5\4\5\10\4\6\5\6\4\10\4\4\5\7\4\5"..., 4096) = 4096
> read(3, "\3\3\5\5\5\5\5\5\5\5\5\5\4\3\7\3\6\4\5\3\7\3\3\2\5\5\5\3\10\4\5\4"..., 4096) = 4096
> read(3, "\5\5\4\5\5\5\5\5\4\5\4\5\4\5\5\5\4\5\4\5\5\5\5\5\5\5\5\5\5\5\4\5"..., 4096) = 4096
> read(3, "\6\24\5\5\6\t\6\10\6\32\7\f\5\5\6\7\6\20\5\7\6\t\6\6\6\r\5\4\6\6\6\16"..., 4096) = 4096
> read(3, "\6\37\7\r\6\"\7\17\5\f\6\v\6\16\5\6\6\10\6\25\7\v\5\5\6\16\6\10\5\5\6\7"..., 4096) = 4096
> read(3, "\6\21\5\5\6\17\6\5\6\22\6\23\5\10\6\n\6\v\6\32\6\r\5\3\6\7\6\r\6\24\5\6"..., 4096) = 4096
> fstat(3, {st_mode=S_IFREG|0644, st_size=241214, ...}) = 0
> lseek(3, 0, SEEK_CUR)                   = 28672
> mmap(NULL, 241214, PROT_READ, MAP_SHARED, 3, 0) = 0x2b90341a4000
> lseek(3, 27784, SEEK_SET)               = 27784
> close(3)                                = 0
> munmap(0x2b9034163000, 4096)            = 0
> write(1, "[([klama1 (go-er(s)):] mi", 25[([klama1 (go-er(s)):] mi) = 25
> write(1, " /I, me/) /[is, does]/ <<klama", 30 /I, me/) /[is, does]/ <<klama) = 30
> write(1, " /go-ing/>>]\n", 13 /go-ing/>>]
> )          = 13
> exit_group(0)                           = ?
> - -----------------------------------------------------------
> 
> -- 
> You received this message because you are subscribed to the Google Groups "lojban" group.
> To post to this group, send email to lojban@googlegroups.com.
> To unsubscribe from this group, send email to lojban+unsubscribe@googlegroups.com.
> For more options, visit this group at http://groups.google.com/group/lojban?hl=en.
> 

-- 
.i ma'a lo bradi cu penmi gi'e du

-- 
You received this message because you are subscribed to the Google Groups "lojban" group.
To post to this group, send email to lojban@googlegroups.com.
To unsubscribe from this group, send email to lojban+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/lojban?hl=en.