Messages in this thread |  | | From | Jia-Ju Bai <> | Subject | [REPORT] net: e100: possible data races | Date | Wed, 3 Oct 2018 21:03:38 +0800 |
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CPU0: e100_set_multicast_list e100_exec_cb line 854: spin_lock_irqsave() line 866: e100_configure (function pointer) line 1114: nic->flags [READ] line 1123: nic->flags [READ]
CPU1: e100_watchdog line 1731: nic->flags [WRITE] line 1733: nic->flags [WRITE]
As for nic->flags, the WRITE operations in CPU0 are performed with holding a spinlock, but the READ operations in CPU1 are performed without holding this spinlock, so there may exist data races.
These possible races are detected by a runtime testing. I do not find a good way to fix these races, so I only report them.
Best wishes, Jia-Ju Bai
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