Messages in this thread | | | From | Linus Torvalds <> | Date | Mon, 5 Nov 2018 09:57:47 -0800 | Subject | Re: [LKP] [xarray] 0e9446c35a: WARNING:at_include/linux/xarray.h:#xa_mk_value |
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Willy,
On Sun, Nov 4, 2018 at 11:03 PM kernel test robot <rong.a.chen@intel.com> wrote: > > commit: 0e9446c35a80931044b6d8d2d74a9cabd248539f ("xarray: Add range store functionality") ... > [ 11.880031] WARNING: CPU: 0 PID: 1 at include/linux/xarray.h:54 xa_mk_value+0x7/0x10 > [ 11.881944] EIP: xa_mk_value+0x7/0x10 > [ 11.883565] Call Trace: > [ 11.883565] __check_store_range+0xe/0x171 > [ 11.883565] check_store_range+0x5d/0x87
If I read this right, it's simply this case:
__check_store_range(xa, UINT_MAX + i, UINT_MAX + j);
which turns into negative values on a 32-bit machine, and then xa_mk_value() warns.
Should that part of the test be surrounded by #ifdef CONFIG_64BIT? Or did you _want_ the warnings?
Linus
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