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SubjectRe: [PATCH 1/6] seq_file: add seq_read_iter
On Fri, Nov 13, 2020 at 09:14:20PM -0700, Nathan Chancellor wrote:

> Unfortunately that patch does not solve my issue. Is there any other
> debugging I should add?

Hmm... I wonder which file it is; how about
if (WARN_ON(!iovec.iov_len))
printk(KERN_ERR "odd readv on %pd4\n", file);
in the loop in fs/read_write.c:do_loop_readv_writev()?

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