mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
qlcnic: Fix CPU soft lockup while collecting firmware dump
Driver while collecting firmware dump takes longer time to collect/process some of the firmware dump entries/memories. Bigger capture masks makes it worse as it results in larger amount of data being collected and results in CPU soft lockup. Place cond_resched() in some of the driver flows that are expectedly time consuming to relinquish the CPU to avoid CPU soft lockup panic. Signed-off-by: Shahed Shaikh <shshaikh@marvell.com> Tested-by: Yonggen Xu <Yonggen.Xu@dell.com> Signed-off-by: Manish Chopra <manishc@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
bb48eb9b12
commit
22e984493a
2 changed files with 3 additions and 0 deletions
|
@ -2043,6 +2043,7 @@ static void qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter *p_dev,
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
entry += p_hdr->size;
|
entry += p_hdr->size;
|
||||||
|
cond_resched();
|
||||||
}
|
}
|
||||||
p_dev->ahw->reset.seq_index = index;
|
p_dev->ahw->reset.seq_index = index;
|
||||||
}
|
}
|
||||||
|
|
|
@ -703,6 +703,7 @@ static u32 qlcnic_read_memory_test_agent(struct qlcnic_adapter *adapter,
|
||||||
addr += 16;
|
addr += 16;
|
||||||
reg_read -= 16;
|
reg_read -= 16;
|
||||||
ret += 16;
|
ret += 16;
|
||||||
|
cond_resched();
|
||||||
}
|
}
|
||||||
out:
|
out:
|
||||||
mutex_unlock(&adapter->ahw->mem_lock);
|
mutex_unlock(&adapter->ahw->mem_lock);
|
||||||
|
@ -1383,6 +1384,7 @@ int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
|
||||||
buf_offset += entry->hdr.cap_size;
|
buf_offset += entry->hdr.cap_size;
|
||||||
entry_offset += entry->hdr.offset;
|
entry_offset += entry->hdr.offset;
|
||||||
buffer = fw_dump->data + buf_offset;
|
buffer = fw_dump->data + buf_offset;
|
||||||
|
cond_resched();
|
||||||
}
|
}
|
||||||
|
|
||||||
fw_dump->clr = 1;
|
fw_dump->clr = 1;
|
||||||
|
|
Loading…
Reference in a new issue