[Bug 1538049] Re: xenstore crashes with SIGBUS in domain_can_read()

Stefan Bader stefan.bader at canonical.com
Tue Jan 26 16:48:52 UTC 2016


Not sure this has some meaning or is just a red herring but comparing
the grant-rable debug output with Wily (Xen-4.5) it looks mostly similar
except the entry #8 which has back then the same pin number as the other
two...

(XEN)       -------- active --------       -------- shared --------
(XEN) [ref] localdom mfn      pin          localdom gmfn     flags
(XEN) grant-table for remote domain:    1 (v1)
(XEN) [  0]        0 0x8091ff 0x00000002          0 0x8091ff 0x19
(XEN) [  1]        0 0x809200 0x00000002          0 0x809200 0x19
(XEN) [  8]        0 0x5353ba 0x00000002          0 0x5353ba 0x19

Reading the code #0 is related to console and #1 to xenstore. Not sure
what that #8 is.

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https://bugs.launchpad.net/bugs/1538049

Title:
  xenstore crashes with SIGBUS in domain_can_read()

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