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From:   Anatoly Pugachev <matorola@gmail.com>
Date:   Sat, 19 Jun 2021 11:24:20 +0300
Message-ID: <CADxRZqwzbHvMwEB=y_xi2GYK55wtnzycWcUoK_t4q_ccisp+Sg@mail.gmail.com>
Subject: [sparc64] kernel panic from running a program in userspace
To:     Sparc kernel list <sparclinux@vger.kernel.org>
Cc:     Linux Kernel list <linux-kernel@vger.kernel.org>,
        debian-sparc <debian-sparc@lists.debian.org>,
        kernel-testers@vger.kernel.org,
        Colin Ian King <colin.king@canonical.com>
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Hello!

Getting the following in logs:
(reproducible with almost every run, tried different kernel as well -
debian packaged 5.10.0-7-sparc64-smp )

[  863.344843] stress-ng[593992]: bad register window fault: SP
00000000fcd023ff (orig_sp 00000000fcd01c00) TPC fff80001000237fc O7
fff800010003e008
[  890.782498] CPU[4]: SUN4V mondo timeout, cpu(5) made no forward
progress after 500001 retries. Total target cpus(7).
[  890.782539] CPU[3]: SUN4V mondo timeout, cpu(5) made no forward
progress after 500001 retries. Total target cpus(7).
[  890.782590] Kernel panic - not syncing: SUN4V mondo timeout panic
[  890.782664] CPU: 4 PID: 480951 Comm: stress-ng Tainted: G
 E     5.13.0-rc6 #229
[  890.782713] Call Trace:
[  890.782733] [<0000000000c806c8>] panic+0xf4/0x2d4
[  890.782773] [<000000000043f3a8>] hypervisor_xcall_deliver+0x288/0x320
[  890.782816] [<000000000043efb8>] xcall_deliver+0xf8/0x120
[  890.782860] [<0000000000440518>] smp_flush_tlb_page+0x38/0x60
[  890.782898] [<000000000044ee44>] flush_tlb_pending+0x64/0xa0
[  890.782938] [<000000000044f1c4>] arch_leave_lazy_mmu_mode+0x24/0x40
[  890.782977] [<0000000000651b4c>] copy_pte_range+0x5ac/0x860
[  890.783013] [<0000000000655974>] copy_pud_range+0x1f4/0x260
[  890.783049] [<0000000000655b2c>] copy_page_range+0x14c/0x1c0
[  890.783083] [<00000000004613b4>] dup_mmap+0x374/0x4a0
[  890.783123] [<0000000000461530>] dup_mm+0x50/0x200
[  890.783157] [<0000000000462384>] copy_process+0x704/0x1280
[  890.783196] [<00000000004631a8>] kernel_clone+0x88/0x380
[  890.783231] [<000000000042d170>] sparc_clone+0xb0/0xe0
[  890.783274] [<0000000000406274>] linux_sparc_syscall+0x34/0x44
[  890.784106] CPU[7]: SUN4V mondo timeout, cpu(5) made no forward
progress after 500002 retries. Total target cpus(7).
[  890.784119] CPU[6]: SUN4V mondo timeout, cpu(5) made no forward
progress after 500003 retries. Total target cpus(7).
[  890.784876] Press Stop-A (L1-A) from sun keyboard or send break
[  890.784876] twice on console to return to the boot prom
[  890.784897] ---[ end Kernel panic - not syncing: SUN4V mondo
timeout panic ]---

(and machine halt)

after running stress-ng :

stress-ng.git$ ./stress-ng --verbose --timeout 10m --opcode -1
stress-ng: debug: [480950] stress-ng 0.12.10 g27f90a2276bd
stress-ng: debug: [480950] system: Linux ttip 5.13.0-rc6 #229 SMP Tue
Jun 15 12:30:23 MSK 2021 sparc64
stress-ng: debug: [480950] RAM total: 7.8G, RAM free: 7.0G, swap free: 768.=
7M
stress-ng: debug: [480950] 8 processors online, 256 processors configured
stress-ng: info:  [480950] dispatching hogs: 8 opcode
stress-ng: debug: [480950] cache allocate: using cache maximum level L2
stress-ng: debug: [480950] cache allocate: shared cache buffer size: 128K
stress-ng: debug: [480950] starting stressors
stress-ng: debug: [480951] stress-ng-opcode: started [480951] (instance 0)
stress-ng: debug: [480952] stress-ng-opcode: started [480952] (instance 1)
stress-ng: debug: [480953] stress-ng-opcode: started [480953] (instance 2)
stress-ng: debug: [480955] stress-ng-opcode: started [480955] (instance 3)
stress-ng: debug: [480957] stress-ng-opcode: started [480957] (instance 4)
stress-ng: debug: [480959] stress-ng-opcode: started [480959] (instance 5)
stress-ng: debug: [480961] stress-ng-opcode: started [480961] (instance 6)
stress-ng: debug: [480950] 8 stressors started
stress-ng: debug: [480963] stress-ng-opcode: started [480963] (instance 7)
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
Inconsistency detected by ld.so: dl-runtime.c: 80: _dl_fixup:
Assertion `ELFW(R_TYPE)(reloc->r_info) =3D=3D ELF_MACHINE_JMP_SLOT'
failed!
*** stack smashing detected ***: terminated
munmap_chunk(): invalid pointer
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
*** stack smashing detected ***: terminated
Inconsistency detected by ld.so: : 422: Assertion `=EF=BF=BD' failed!
*** stack smashing detected ***: terminated


Machine is my testing LDOM (virtual machine), installed and running
the latest sparc4 debian sid (unstable).