Re: lib/56318: sshd fails to start on NetBSD/pmax 9.2 R3000 3MIN

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

The following reply was made to PR lib/56318; it has been noted by GNATS.

From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: tsutsui%ceres.dti.ne.jp@localhost
Subject: Re: lib/56318: sshd fails to start on NetBSD/pmax 9.2 R3000 3MIN
Date: Tue, 10 Aug 2021 02:25:35 +0900

 This also happens on SPARC station 2 (sun4c) + NetBSD/sparc 9.2:
 
 ---
 ss2-% ssh-keygen
 Generating public/private rsa key pair.
 assertion "(*wnumtop) == 0" failed: file "/usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_div.c", line 439, function "bn_div_fixed_top"
 Abort (core dumped)
 ss2-% gdb /usr/bin/ssh-keygen ssh-keygen.core
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 warning: ../../../../gdbscripts/bdump: No such file or directory
 
 warning: ../../../../gdbscripts/cpus: No such file or directory
 
 warning: ../../../../gdbscripts/kdump: No such file or directory
 
 warning: ../../../../gdbscripts/lwps: No such file or directory
 
 warning: ../../../../gdbscripts/msgbuf: No such file or directory
 
 warning: ../../../../gdbscripts/pgrpdump: No such file or directory
 
 warning: ../../../../gdbscripts/procs: No such file or directory
 
 warning: ../../../../gdbscripts/vchain: No such file or directory
 
 warning: ../../../../gdbscripts/vdump: No such file or directory
 Reading symbols from /usr/bin/ssh-keygen...
 Reading symbols from /usr/libdata/debug//usr/bin/ssh-keygen.debug...
 [New process 1]
 Core was generated by `ssh-keygen'.
 Program terminated with signal SIGABRT, Aborted.
 #0  abort () at /usr/src/lib/libc/stdlib/abort.c:80
 80              (void)signal(SIGABRT, SIG_DFL);
 (gdb) bt
 #0  abort () at /usr/src/lib/libc/stdlib/abort.c:80
 #1  0xeda19fc8 in __assert13 (
     file=0xedda9630 "/usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_div.c", line=line@entry=439, function=<optimized out>,
     failedexpr=0xedda9670 "(*wnumtop) == 0")
     at /usr/src/lib/libc/gen/assert.c:72
 #2  0xedd466e0 in bn_div_fixed_top (dv=dv@entry=0x0, rm=rm@entry=0xed8c820c,
     num=num@entry=0xefffe69c, divisor=divisor@entry=0xed8c81f8,
     ctx=ctx@entry=0xedeb6150)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_div.c:439
 #3  0xedd46744 in BN_div (dv=dv@entry=0x0, rm=rm@entry=0xed8c820c,
     num=num@entry=0xefffe69c, divisor=divisor@entry=0xed8c81f8,
     ctx=ctx@entry=0xedeb6150)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_div.c:229
 #4  0xedd45a08 in BN_nnmod (r=r@entry=0xed8c820c, m=m@entry=0xefffe69c,
     d=d@entry=0xed8c81f8, ctx=ctx@entry=0xedeb6150)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_mod.c:20
 #5  0xedd44d28 in bn_mod_inverse_no_branch (pnoinv=0xefffe714, ctx=0xedeb6150,
     n=0xefffe784, a=<optimized out>, in=0xed8c81e4)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_gcd.c:67
 #6  int_bn_mod_inverse (in=0xed8c81e4, a=<optimized out>, n=0xefffe784,
     ctx=0xedeb6150, pnoinv=0xefffe714)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_gcd.c:214
 #7  0xedd45630 in BN_mod_inverse (in=in@entry=0xed8c81e4,
     a=a@entry=0xedb46144, n=n@entry=0xefffe784, ctx=ctx@entry=0xedeb6150)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_gcd.c:528
 #8  0xedd44a80 in BN_MONT_CTX_set (mont=mont@entry=0xedb46140,
     mod=mod@entry=0xedec20a0, ctx=ctx@entry=0xedeb6150)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_mont.c:351
 #9  0xedcfc06c in BN_is_prime_fasttest_ex (a=0xedec20a0,
     checks=<optimized out>, ctx_passed=0xedeb6150,
     do_trial_division=<optimized out>, cb=0x0)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_prime.c:215
 #10 0xedcfc784 in BN_generate_prime_ex (ret=ret@entry=0xedec20a0,
     bits=bits@entry=1536, safe=safe@entry=0, add=<optimized out>,
     add@entry=0x0, rem=rem@entry=0x0, cb=<optimized out>, cb@entry=0x0)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_prime.c:104
 #11 0xedc7b694 in rsa_builtin_keygen (cb=0x0, e_value=<optimized out>,
     primes=<optimized out>, bits=<optimized out>, rsa=0xedbba0c0)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/rsa/rsa_gen.c:164
 #12 RSA_generate_multi_prime_key (rsa=0xedbba0c0, bits=<optimized out>,
     primes=<optimized out>, e_value=<optimized out>, cb=0x0)
     at /usr/src/crypto/external/bsd/openssl/dist/crypto/rsa/rsa_gen.c:61
 #13 0xede37de4 in rsa_generate_private_key (rsap=0xedeb2148, bits=3072)
     at /usr/src/crypto/external/bsd/openssh/dist/sshkey.c:1454
 #14 sshkey_generate (type=-56, type@entry=0, bits=3072,
     keyp=keyp@entry=0xefffea98)
     at /usr/src/crypto/external/bsd/openssh/dist/sshkey.c:1607
 #15 0x0001931c in main (argc=<optimized out>, argv=0xeffff7f8)
     at /usr/src/crypto/external/bsd/openssh/dist/ssh-keygen.c:2816
 (gdb)
 
 ---
 Izumi Tsutsui