On Tue, 29 Dec 2020 22:05:21 +0100 Denys Vlasenko <vda.li...@googlemail.com> wrote:
> On Mon, Dec 28, 2020 at 6:15 PM Lauri Kasanen <c...@gmx.com> wrote:
> > Hi,
> >
> > On Busybox 1.31.1, modprobing any module for the 5.10 kernel prints a
> > nasty message:
> > Module has invalid ELF header
> >
> > but the module loads successfully after that. So looks like bb tries
> > two paths, the first fails, second succeeds.
>
> What does strace show?
openat(AT_FDCWD, "kernel/drivers/char/ppdev.ko.gz",
O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
SYS_350(0x3, 0x80b37d5, 0, 0xb7d794b7, 0x3) = -1 ENOEXEC (Exec format error)
close(3) = 0
openat(AT_FDCWD, "kernel/drivers/char/ppdev.ko.gz", O_RDONLY|O_LARGEFILE) = 3
read(3, "\37\213", 2) = 2
read(3,
"\10\0\0\0\0\0\2\3\214V\5p\333h\26\226l'\345\332s\353\366\312\350\36S\2713\245\364<Z\366]\246\256\322\300\25\226\335\36\25\344\300b\\E\327\374\367\227{\314\314\214q\3219g\32{\247\214.\315\6\n\326*\273S\256\353\346\252}\357Ir\262\274\236\261\364\376\367\177\17\376\7\277\336K\322\243\367\213"...,
16384) = 4363
read(3, "", 12021) = 0
read(3, "", 16384) = 0
close(3) = 0
init_module(0x921b9c0, 10100, "") = 0
Full log attached. Repros on both x86 and x86_64, and the modules are gzip
compressed.
- Lauri
strace.log.gz
Description: Binary data
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