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c71c8c715b
This commit reverts to using printk() instead of zfs_dbgmsg() to log messages in vdev_disk_error(): this is necessary because the latter can be called from interrupt context where we are not allowed to sleep. Unfortunately zfs_dbgmsg() performs its allocations calling kmalloc() with the KM_SLEEP flag which may result in the following oops: BUG: scheduling while atomic: swapper/4/0/0x10000100 Call Trace: <IRQ> [<0>] dump_stack+0x19/0x1b ... [<0>] spl_kmem_alloc+0xdf/0x140 [spl] <-- kmem_alloc(size, KM_SLEEP) [<0>] __dprintf+0x69/0x150 [zfs] [<0>] ? kmem_cache_free+0x1e2/0x200 [<0>] vdev_disk_error.part.15+0x5f/0x70 [zfs] [<0>] vdev_disk_io_flush_completion+0x48/0x70 [zfs] [<0>] bio_endio+0x67/0xb0 [<0>] blk_update_request+0x90/0x360 ... [<0>] scsi_finish_command+0xdc/0x140 [<0>] scsi_softirq_done+0x132/0x160 [<0>] blk_done_softirq+0x96/0xc0 [<0>] __do_softirq+0xf5/0x280 [<0>] call_softirq+0x1c/0x30 [<0>] do_softirq+0x65/0xa0 [<0>] irq_exit+0x105/0x110 [<0>] do_IRQ+0x56/0xf0 [<0>] common_interrupt+0x162/0x162 <EOI> [<0>] ? cpuidle_enter_state+0x54/0xd0 [<0>] cpuidle_idle_call+0xde/0x230 [<0>] arch_cpu_idle+0xe/0xb0 [<0>] cpu_startup_entry+0x14a/0x1e0 [<0>] start_secondary+0x1f7/0x270 [<0>] start_cpu+0x5/0x14 Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: loli10K <ezomori.nozomu@gmail.com> Closes #8137 Closes #8150 |
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| .. | ||
| avl | ||
| icp | ||
| lua | ||
| nvpair | ||
| spl | ||
| unicode | ||
| zcommon | ||
| zfs | ||
| .gitignore | ||
| Makefile.in | ||