[Xen-devel] Xen Host Crash

[Rishi <2rushikeshj@xxxxxxxxx>]

Hello

I have a xen host crash report from XCP-NG and stack looks like

         [ffff82d0801179c8] elf_core_save_regs+0/0xae
          ffff82d08011849c  kexec_crash+0x59/0x5b
          ffff82d0801444e9  panic+0xea/0x115
          ffff82d08019dc50  do_page_fault+0x443/0x4bf
          ffff82d08023ade3  handle_exception+0x9b/0xf9
          ffff82d08023aea9  handle_exception_saved+0x68/0x94
          ffff82d08022cc4b  sh_page_fault__guest_4+0xb62/0x1f97
          ffff82d08022cb53  sh_page_fault__guest_4+0xa6a/0x1f97
          ffff82d0801352cf  _spin_unlock_recursive+0x2f/0x34
          ffff82d08022bf13  sh_update_cr3__guest_4+0x8a8/0xa7e
          ffff82d080137ce7  add_entry+0x54/0xb2
          ffff82d080177604  update_cr3+0x26/0x48
          ffff82d080235b68  toggle_guest_pt+0x2b/0x147
          ffff82d080235cbc  toggle_guest_mode+0x38/0x4a
          ffff82d080235dcd  do_iret+0xff/0x19c
          ffff82d08023ade3  handle_exception+0x9b/0xf9
          ffff82d08023add7  handle_exception+0x8f/0xf9
          ffff82d08023ade3  handle_exception+0x9b/0xf9
          ffff82d08023add7  handle_exception+0x8f/0xf9
          ffff82d08023ade3  handle_exception+0x9b/0xf9
          ffff82d08023add7  handle_exception+0x8f/0xf9
          ffff82d08023ade3  handle_exception+0x9b/0xf9
          ffff82d08023ade3  handle_exception+0x9b/0xf9
          ffff82d08019d978  do_page_fault+0x16b/0x4bf
          ffff82d08023ade3  handle_exception+0x9b/0xf9
          ffff82d08023aea9  handle_exception_saved+0x68/0x94

Xen Version used is "4.7.6-6.3.1.xcp"

I would like to know if it has to do with patch
https://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=9dc1e0cd81ee469d638d1962a92d9b4bd2972bfa
This patch is not applied on stable-4.7 or stable-4.8, but it is
applied on stable-4.9 and above till master.

Thank you for your time.

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