linux-kernel - Re: GIT head no longer boots on x86-64

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1223895414-19793-1-git-send-email-jirislaby@gmail.com>
Date:	Mon, 13 Oct 2008 12:56:54 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: GIT head no longer boots on x86-64

Could you try the debug patch below to see what address is text_poke trying
to translate?

---
 mm/vmalloc.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index bba06c4..8b8d0a4 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -179,13 +179,17 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
 	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *ptep, pte;
+	char buf[KSYM_NAME_LEN];
 
 	/*
 	 * XXX we might need to change this if we add VIRTUAL_BUG_ON for
 	 * architectures that do not vmalloc module space
 	 */
-	VIRTUAL_BUG_ON(!is_vmalloc_addr(vmalloc_addr) &&
-			!is_module_address(addr));
+/*	VIRTUAL_BUG_ON(!is_vmalloc_addr(vmalloc_addr) &&
+			!is_module_address(addr));*/
+	sprint_symbol(buf, (unsigned long)__builtin_return_address(0));
+	if (!is_vmalloc_addr(vmalloc_addr) && !is_module_address(addr))
+		printk("BUG? %s (from %s): %p\n", __func__, buf, vmalloc_addr);
 
 	if (!pgd_none(*pgd)) {
 		pud = pud_offset(pgd, addr);
-- 
1.6.0.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/