syzbot


kernel panic: Proc-ful Page Fault in dt 9P2000he Kernel at ADDR!

Status: auto-closed as invalid on 2019/02/22 10:22
Reported-by: syzbot+0b03d8289df2f1f205e9@syzkaller.appspotmail.com
First crash: 2310d, last: 2310d

Sample crash report:
kernel panic at kern/arch/x86/trap.c:312, from core 1: �Proc-ful Page Fault in ��dÿÿt ���9P2000he Kernel at 0x000000000000001b!
HW TRAP frame at 0xfffffff0000ebd30 on core 1
  rax  0x0000000000000000
  rbx  0xffff800006a011e0
  rcx  0xfffffff0000ebea0
  rdx  0xfffffff0000ebd6c
  rbp  0xfffffff0000ebe38
  rsi  0x0000000000000000
  rdi  0xfffffff0000ebea0
  r8   0x0000000000000001
  r9   0xffffffffc8790880
  r10  0x0000000000000030
  r11  0xffff80000683c2a0
  r12  0xffff800002177d00
  r13  0x0000000020000840
  r14  0x0000000000000073
  r15  0x000000000000009c
  trap 0x0000000e Page Fault
  gsbs 0xffffffffc8667c40
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc20583f4
  cs   0x------------0008
  flag 0x0000000000010246
  rsp  0xfffffff0000ebdf8
  ss   0x------------0010
Backtrace of kernel context on Core 1:
#01 [<0xffffffffc20583f4>] in sys_readlink at src/syscall.c:2037
#02 [<0xffffffffc2059409>] in syscall at src/syscall.c:2528
#03 [<0xffffffffc20595d4>] in run_local_syscall at src/syscall.c:2563
#04 [<0xffffffffc2059b09>] in prep_syscalls at src/syscall.c:2583
#05 [<0xffffffffc20ab36a>] in sysenter_callwrapper at arch/x86/trap.c:854
kernel warning at kern/src/ns/convM2D.c:52, from core 2: nbuf 58, STAT_FIX_LEN_9P 49 BIT16SZ 2, GBIT16(buf) 0 
Stack Backtrace on Core 2:
#01 [<0xffffffffc200a2dc>] in backtrace at src/kdebug.c:220
#02 [<0xffffffffc2009b94>] in _warn at src/init.c:323
#03 [<0xffffffffc2034c0d>] in statcheck at src/ns/convM2D.c:51
#04 [<0xffffffffc203deb8>] in validstat at src/ns/sysfile.c:961
#05 [<0xffffffffc203ef1e>] in sysfwstat at src/ns/sysfile.c:421
#06 [<0xffffffffc2055c70>] in sys_fwstat at src/syscall.c:2337
#07 [<0xffffffffc2059409>] in syscall at src/syscall.c:2528
#08 [<0xffffffffc20595d4>] in run_local_syscall at src/syscall.c:2563
#09 [<0xffffffffc2059b09>] in prep_syscalls at src/syscall.c:2583
#10 [<0xffffffffc20ab36a>] in sysenter_callwrapper at arch/x86/trap.c:854
kernel panic at kern/arch/x86/trap.c:312, from core 3: Proc-ful Page Fault in the Kernel at 0x0000000000000000!
HW TRAP frame at 0xfffffff0000c1620 on core 3
  rax  0x0000000000000000
  rbx  0xffffffffc210f658
  rcx  0xffff8000048a8708
  rdx  0x0000000000000003
  rbp  0xfffffff0000c1748
  rsi  0xffffffffc210f640
  rdi  0xffffffffc210f658
  r8   0x0000000000000000
  r9   0xffff80000324eb08
  r10  0x0000000000000168
  r11  0xffff80000324e9d8
  r12  0x0000000000000000
  r13  0xffffffffc20b1b00
  r14  0xffff80000324e9d8
  r15  0xffffffffc210f640
  trap 0x0000000e Page Fault
  gsbs 0xffffffffc8668140
  fsbs 0x0000000000000000
  err  0x--------00000002
  rip  0xffffffffc200be1c
  cs   0x------------0008
  flag 0x0000000000010086
  rsp  0xfffffff0000c16e8
  ss   0x------------0010
Backtrace of kernel context on Core 3:
#01 [<0xffffffffc200be1c>] in sem_down at src/kthread.c:434
#02 [<0xffffffffc2076054>] in consread at drivers/dev/cons.c:815

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/27 01:57 akaros 8dc899e19d0f 375a3e31 .config console log report ci-akaros-main
* Struck through repros no longer work on HEAD.