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...odule from the intermezzo project layered over ext3, I got the following assertion failure: Jan 17 23:09:55 planck kernel: Assertion failure in jfs_prelock_buffer_check() at journal.c line 410: "bh->b_jlist == 0 || bh->b_jlist == BJ_LogCtl || bh->b_jlist == BJ_IO || bh->b_jlist == BJ_Data" Jan 17 23:09:55 planck kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 Jan 17 23:09:55 planck kernel: current->tss.cr3 = 00101000, %cr3 = 00101000 Jan 17 23:09:55 planck kernel: *pde = 00000000 Jan 17 23:09:55 planck kernel: Oops: 0002 Jan 17 23:09:55 p...

...ks great ! But. When I plug the second disk in a start a reconstruction, sooner or later within seconds I get an 'ASSERT' failure at line 411 in journal.c. ! It's this line.... J_ASSERT(bh->b_jlist == 0 || bh->b_jlist == BJ_LogCtl || bh->b_jlist == BJ_IO || bh->b_jlist == BJ_Data); Anyone run into this using software raid ? Alan.

...000 with ext2. This is how I solved the 2 ext3 rejects 1) fs/buffer.c @@ -908,9 +933,13 @@ if (buf->b_count) { buf->b_count--; + if (!buf->b_count && + (buf->b_jlist != BJ_None && buf->b_jlist != BJ_Shadow && buf->b_jlis t != BJ_Data)) + J_ASSERT (!test_bit(BH_JWrite, &buf->b_state)); return; } printk("VFS: brelse: Trying to free free buffer\n"); + J_ASSERT(buf->b_count > 0); *(int *)0 = 0; <== This is RH specific, I chose to put J_ASSERT before it } 2) +1 to all...

...uot; before or after " *(int *)0 = 0;"? ===== ext3 0.0.7a patch --- 934,946 ---- if (buf->b_count) { buf->b_count--; + if (!buf->b_count && + (buf->b_jlist != BJ_None && buf->b_jlist != BJ_Shadow && buf->b_jlis t != BJ_Data)) + J_ASSERT (!test_bit(BH_JWrite, &buf->b_state)); return; } printk("VFS: brelse: Trying to free free buffer\n"); + J_ASSERT(buf->b_count > 0); } ===== redhat latest 2.2.19 if (buf->b_count) { buf->b_count--; return;...

...d (truncated) */ +#define BH_Revoked 13 /* 1 if buffer has been revoked from the log */ +#define BH_RevokeValid 14 /* 1 if buffer revoked flag is valid */ +#define BH_JDirty 15 /* 1 if buffer is dirty but journaled */ + +/* journaling buffer types */ +#define BJ_None 0 /* Not journaled */ +#define BJ_Data 1 /* Normal data: flush before commit */ +#define BJ_Metadata 2 /* Normal journaled metadata */ +#define BJ_Forget 3 /* Buffer superceded by this transaction */ +#define BJ_IO 4 /* Buffer is for temporary IO use */ +#define BJ_Shadow 5 /* Buffer contents being shadowed to the log */ +#define BJ_L...

Red Hat 2.2.19-6.2.12 + 0.0.7a + https://listman.redhat.com/pipermail/ext3-users/2001-November/002258.html (not tuned in /proc yet) + journal 4MB on each fs + 6 ext3 fs on raid1 (hda+hdc) + 1 ext3 fs on another disk not on raid1 (hdd) While untarring (tar zxf) a file that was on a ext3/raid1 onto hdd I got: ksymoops 2.3.4 on i686 2.2.19-6.2.12.g1. Options used -V (default) -k