Re: port-i386/53383: i386 tests panic under qemu with x86/identcpu.c 1.72

[Andreas Gustafsson <gson%gson.org@localhost>]

The following reply was made to PR port-i386/53383; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: maxv%NetBSD.org@localhost
Cc: gnats-bugs%NetBSD.org@localhost
Subject: Re: port-i386/53383: i386 tests panic under qemu with x86/identcpu.c 1.72
Date: Tue, 19 Jun 2018 10:01:04 +0300

 With x86/x86/fpu.c 1.38, the panic has moved to fpu.c line 699:
 
 bin/sh/t_syntax (21/759): 20 test cases
     a_basic_tokenisation: [3.212352s] Passed.
     b_comments: [7.355291s] Passed.
     c_line_wrapping: [7.315732s] Passed.
     d_cstrings: [6.448371s] Passed.
     f_redirects: [8.697452s] Passed.
     g_variable_syntax: [210.182721s] Passed.
     h_var_assign: [4.478792s] Passed.
     i_pipelines: [81.822791s] Passed.
     j_and_or_lists: [20.252139s] Passed.
     k_lists: [29.831012s] Passed.
     l_async_lists: [38.177734s] Passed.
     m_compound_lists: [ 1828.7424373] panic: kernel diagnostic assertion "pcb2->pcb_fpcpu == NULL" failed: file "/tmp/bracket/build/2018.06.19.02.08.12-i386/src/sys/arch/x86/x86/fpu.c", line 699
 [ 1828.7424373] cpu0: Begin traceback...
 [ 1828.7424373] vpanic(c0fc6fa0,c916ada8,c916adc0,c011ee6a,c0fc6fa0,c0fc6edf,c0fc830f,c0fc8384,2bb,c8df0000) at netbsd:vpanic+0x132
 [ 1828.7628038] kern_assert(c0fc6fa0,c0fc6edf,c0fc830f,c0fc8384,2bb,c8df0000,c8df02c0,c916adf4,c0157dec,c8df0000) at netbsd:kern_assert+0x23
 [ 1828.7628038] fpu_save_area_fork(c8df0000,c9168000,c916ade8,c0913518,c1b2b9e4,2,c9168000,c8df0000,c1b2b800,c1b227e4) at netbsd:fpu_save_area_fork+0x79
 [ 1828.7828451] cpu_lwp_fork(c2170aa0,c1b2b800,0,0,c0157646,c1b2b800,c1b2b800,c916ae78,c090f1e3,c2170aa0) at netbsd:cpu_lwp_fork+0x95
 [ 1828.7828451] uvm_lwp_fork(c2170aa0,c1b2b800,0,0,c0157646,c1b2b800,c19df618,c19df168,bfb28000,1) at netbsd:uvm_lwp_fork+0x35
 [ 1828.8028224] lwp_create(c2170aa0,c1b227e4,c8df0000,0,0,0,c0157646,c1b2b800,c916aed0,0) at netbsd:lwp_create+0x30a
 [ 1828.8228318] fork1(c2170aa0,0,14,0,0,c0157646,0,c916af60,c916af9c,c0157577) at netbsd:fork1+0x43c
 [ 1828.8228318] sys_fork(c2170aa0,c916af68,c916af60,c1fe55f0,c9168000,c916af60,c916af68,2,0,0) at netbsd:sys_fork+0x48
 [ 1828.8428979] syscall() at netbsd:syscall+0x1f7
 [ 1828.8428979] --- syscall (number 2) ---
 [ 1828.8428979] b379cd97:
 [ 1828.8428979] cpu0: End traceback...
 
 [ 1828.8628954] dumping to dev 0,1 offset 2680
 [ 1828.8628954] dump 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 succeeded
 
 Full console logs:
 
 http://releng.netbsd.org/b5reports/i386/2018/2018.06.18.23.50.35/test.log
 http://releng.netbsd.org/b5reports/i386/2018/2018.06.19.02.08.12/test.log
 
 -- 
 Andreas Gustafsson, gson%gson.org@localhost