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kernel panic in generic_file_write #44

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dvyukov opened this issue Nov 1, 2017 · 5 comments
Open

kernel panic in generic_file_write #44

dvyukov opened this issue Nov 1, 2017 · 5 comments

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@dvyukov
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dvyukov commented Nov 1, 2017

Got this while running syzkaller on 2b284c4:

bash-4.3$ kernel panic at kern/src/vfs.c:1359, from core 1: assertion failed: buf == buf_end
Entering Nanwan's Dungeon on Core 1 (Ints on):
Type 'help' for a list of commands.
ROS(Core 1)> bash-4.3$ bt
Stack Backtrace on Core 1:
#01 [<0xffffffffc2016074>] in mon_backtrace
#02 [<0xffffffffc2017177>] in monitor
#03 [<0xffffffffc200cbfc>] in _panic
#04 [<0xffffffffc205c51c>] in generic_file_write
#05 [<0xffffffffc2053890>] in sys_write
#06 [<0xffffffffc2056919>] in syscall
#07 [<0xffffffffc2056ad4>] in run_local_syscall
#08 [<0xffffffffc20a28aa>] in sysenter_callwrapper

Unfortunately our ability to localize and produce reproducers is limited due to no Go support.
@akaros-notifier
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akaros-notifier commented Nov 1, 2017 via email

@akaros-notifier
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akaros-notifier commented Nov 2, 2017 via email

@akaros-notifier
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akaros-notifier commented Nov 8, 2017 via email

@dvyukov
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dvyukov commented Nov 9, 2017

No, because you did not accept my pull request :)
akaros/go-akaros#1

But seriously, unfortunately that won't help as we need Go 1.9+.

@brho
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brho commented Nov 9, 2017

Sorry! I didn't see your pull request in the go-akaros repo.

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@brho @dvyukov @akaros-notifier